User:Philcha/Sandbox/Plants Vs. Zombies

Plants vs. Zombies
The cover of the PC version of Plants vs. Zombies with an ordinary zombie.
Developer(s)PopCap Games
Publisher(s)PopCap Games, Electronic Arts (Android Market)
Designer(s)George Fan
Composer(s)Laura Shigihara
EnginePopCap Games Framework
Platform(s)Google Chrome (Chrome Web Store), Microsoft Windows,[1][2] Mac OS X,[1][2] iOS,[3] Xbox Live Arcade,[4] PlayStation Network, Nintendo DS, DSiWare, Bada, Android, Windows Phone 7, PlayStation Vita, BlackBerry Tablet OS[5]
ReleasePC/Mac
iOS
Xbox Live Arcade
Nintendo DS
  • NA: January 18, 2011[6]
  • EU: May 6, 2011
PlayStation Network
  • NA: February 8, 2011
  • PAL: February 9, 2011
DSiWare
  • NA: March 14, 2011
  • PAL: May 6, 2011
Android
  • NA: May 31, 2011
(Amazon AppStore)
December 14, 2011 (Android Market)
Windows Phone 7
  • NA: June 22, 2011
PlayStation Vita
February 22, 2012[8]
Genre(s)Tower defense
Mode(s)Single-player, multiplayer

Plants vs. Zombies is a tower defense action video game developed and originally published by PopCap Games for Microsoft Windows and Mac OS X. The game involves a homeowner using many varieties of plants to repel an army of zombies from "eating their brains". It was first released on May 5, 2009, and made available on Steam on the same day.[1][9] A version for iOS was released in February 2010, and an HD version for the iPad.[10] An extended Xbox Live Arcade version introducing new gameplay modes and features was released on September 8, 2010.[4] PopCap released a Nintendo DS version on January 18, 2011 with content unique to the platform.[11] The PlayStation 3 version was released in February 2011 also with added new co op and versus modes found in the Xbox 360 version. An Android version of the game, exclusive to the Amazon Android App Store, was released on May 31, 2011.[12] On February 16, 2012, a version was released for BlackBerry PlayBook.[5] Furthermore, both the original Windows and Mac version of the game have been re-released with additional content in a Game of the Year version. The game received a positive response from critics, and was nominated for multiple Interactive Achievement Awards, alongside receiving praise for its musical score.

Reception edit

Timeline

[13] However, the DS version was criticised for its lower quality graphics and expensive price point.[14] GameSpot editor Chris Watters praised the design of the plants and zombies, as well as the visuals and its overall value. However, he found fault in the learning curve.[15] 1UP editor Alice Liang found the game enjoyable, commenting that the lawnmowers that protect the left side of the screen strikes a good balance between ease-of-use and indepth game play.[16] Edge's review praised PopCap Games for adding an imaginative touch to every little detail of the game. He also credited them for taking the tower defense genre and making it their own.[17]

Laura Shigihara's music video also received praise, with Hatfield attributing his interest in the game to the video.[18] Liang also praised the song, asking how anyone could not want Plants vs. Zombies after seeing the video.[16]

[19]

Awards edit

Plants vs. Zombies has been nominated for the "Casual Game of the Year" and "Outstanding Achievement in Game Design" Interactive Achievement Awards from the Academy of Interactive Arts & Sciences.[20] The game received nominations in "Best Game Design", "Innovation", and "Best Download Game" for the Game Developers Choice Awards.[21] Plants vs Zombies was picked by Gamezebo as one of the 'Best games of 2009'.[22]

Sales edit

To date, Plants vs. Zombies is the fastest-selling video game created by PopCap Games.[23] Plants vs. Zombies director George Fan estimated that half of the game's sales are from hardcore gamers.[24]

According to PopCap, the iOS release of Plants vs. Zombies sold more than 300,000 copies in the first nine days it was available on the App Store, generating more than $1M in gross sales, and considered it "the top-grossing iPhone launch".[25]

Gameplay edit

In Plants vs. Zombies, players place different types of plants and fungi, each with their own unique offensive or defensive capabilities, around a house in order to stop a horde of zombies from eating the brains of the residents. The playing field is divided into a number of horizontal lanes, and with rare exceptions, a zombie will only move towards the player's house along one lane (the main exception is if it has taken a bite out of a garlic). Most plants can only attack or defend against zombies in the lane they are planted in. In later levels, players can purchase upgrades so as to adapt their lawn mower to new environments like pools or rooftops.

 
Gameplay in progress.

The player starts with a limited number of seed pack types and seed pack slots that they can use during most levels. The number of slots can be increased through purchases with in-game money. At the start of a level, the player is shown the various types of zombies to expect and given the opportunity to select which seed packs to take into the level. Several plants are nocturnal, such as mushrooms, having a lower sunlight cost, and are ideal for nighttime levels. Certain plants are highly effective against specific types of zombies, such as the Magnet-shroom, which can remove metallic items from a zombie, such as helmets, buckets and ladders.

The zombies also come in a number of types that have different attributes, in particular, speed, damage tolerance, and abilities. Zombies include those wearing makeshift armour, those that are able to jump or fly over plants, and a dancing zombie (bearing intentional resemblance to Michael Jackson in the "Thriller" music video) that is able to summon other zombies from the ground. At various points the player will be inundated with a huge wave of zombies.

Game modes edit

The primary game mode is a single-player and Adventure mode in which the player can earn money to spend at an in-game store to buy new seed packets and other bonuses.

The game also features extra modes that be unlockable as the player progresses through the main adventure. These include a survival game with hard or normal mode, a puzzle mode, and a selection of mini-games which include zombie-themed versions of other PopCap games like Bejeweled.[26] The game also features a Zen garden, where players can care for plants they acquire from successes in game play. The in-game store also carries items that help with the Zen Garden. The PlayStation Network and Xbox Live Arcade version of the game includes 5 multiplayer modes, both co-operative and competitive, additional mini-games and a virtual house where players can show off their achievements to friends.[27][28]

Development edit

System requirements
Requirements
Windows[1]
Operating system Windows 7, Windows Vista, Windows XP
CPU 1.2 GHz
Memory 500 mb
Free space 65+MB of free hard drive space
Graphics hardware 128 MB of video memory, 16-bit or 32-bit color quality
Sound hardware DirectX-compatible sound
Mac[1]
Operating system Mac OS X 10.4.11-10.6.x
CPU 1.66 GHz+ (dual core)
Memory 1 GB
Free space 50 MB
Graphics hardware 64 MB of video memory, 16-bit or 32-bit color quality
Sound hardware Standard audio

Concept edit

Plants vs. Zombies director George Fan intended on balancing the game between a "gritty" game and a "sickeningly cute" game. Strong strategic elements were included to appeal to more experienced gamers, while keeping it simple to appeal casual gamers, without many tutorials. He was inspired to make it a tower defense game after both thinking of a more defense-oriented version of a previous title of his, Insaniquarium, and playing some Warcraft III tower defense mods.[29] While he was looking at the towers in Warcraft III, he felt that plants would make good towers. He wanted to bring something new to the genre with Plants vs. Zombies, and he found common tower defense game play elements such as mazing and juggling[30] to be too awkward, causing him to use the five and six lane set-ups that were used in the final version.[31][32]

Fan included elements from the trading card game Magic: The Gathering while teaching his girlfriend Laura Shigihara how to play it, showing her how to customize their decks. That inspired him to include the seed packets as opposed to using a conveyor belt that produced randomly selected plants, due to the complexity of this system. Another influence on Plants vs. Zombies besides Warcraft III and Insaniquarium was Tapper, crediting the use of five lanes to this game.[31][32] Various members of PopCap Games contributed to the development of Plants vs. Zombies through an internal forum where they gave feedback.

Plants vs. Zombies was originally much like Insaniquarium in that it involved nurturing the plants by watering them and growing grass, but the developers found it to be tedious. It was originally called Weedlings, but this concept was scrapped after the developers realized that there were too many plant-growing games on the market. One of the critical changes to the game was the lowering of the price of Sunflowers from 100 to 50 suns, as those new to the genre would spend their sun power on pea shooters and inevitably lose.[31] More inspiration for Plants vs. Zombies' mechanics came from the film Swiss Family Robinson, especially where the family defends themselves against pirates. This was the inspiration for the Potato Mine; Fan stated that it was satisfying to watch a zombie step on the mine, being defeated and covered in mashed potatoes.[33]

Design edit

The team wanted to bring back the aliens from Insaniquarium, but in the end were changed to zombies, which players could react to more easily because of how slowly they moved. Fan's favorite zombie was the Pole Vaulting Zombie, due to the hilarity involved when a player encounters it for the first time, using a specific example where a player tries to block it with the Wall-Nut, only to have the zombie jump over it.[31][32][34]

The developers focused on the Adventure mode for the first year of development, but programmer Tod Semple finished his development tasks ahead of schedule. Afterward, he was looking for something to do, and began work on minigame ideas. The Puzzle mode had similar origins; Vasebreaker and I, Zombie came from single-level minigames, but after playing them to tweak them, he found he was addicted to them. Fan found it impressive how well-designed they were, stating that while they were using the same plants and the same zombies, they were reinventions of the game mechanics. Fan worried that the minigame and puzzle modes may distract from the main game, so to keep players focused on the Adventure mode, he required that they beat it before they could move onto these modes. However, this was changed due to comments from beta testers that they would like to try these modes out sooner. The developers allowed players to play a few of the stages from these modes in the middle of Adventure mode. Fan stated that it's a common perception amongst players that the Adventure mode is 90% of the game, while the rest of the game is merely additional content. He hoped that players would appreciate the post-game content. Another mode is the Survival mode, which included an Endless mode. After players were getting to the hundredth level in only three hours, Fan decided to make it more difficult, adding powerful zombies after the 20th level, like the Pogo Zombie.[32]

Fan stated that every game he worked on had only him designing the prototype, adding that he used to draw a lot before he made games, where he made pixel art. The final designs of the zombies and the first plants are similar to how they were initially. After searching for an artist, they discovered Rich Werner, who Fan thought clicked with what he intended for the design. He attributed the intrigue of the design to its animation scheme; Tod Semple suggested that they animate it in Flash and export it into the game. Fan worried that this would look like it was cut out from paper, and would resemble South Park too much, but was satisfied in the end, attributing this to Semple and Werner's talents.[32]

Fan was most proud of the Tall-nut, Torchwood, and Cob Cannon plants. He explained that the Tall-nut has character, citing its "determined gaze" and how it sheds a single tear when hurt. Laura Shigihara could not stand to see this, and protected it with a protective plant called a Pumpkin, which can protect plants inside it. He felt that the Torchwood required players to think of how plants interacted with each other. The Cob Cannon went through many design changes, but Fan was happy with the final design.[31][32] Another favorite plant of Fan's was the Squash, due to how well it explained its purpose, to squash things.[34] A plant was proposed that is similar to the defensive item Umbrella Leaf, which would be planted above other plants to protect them from airborne zombies. However, it was difficult to visualize their positions.[32]

Soundtrack edit

The soundtrack for Plants vs. Zombies was composed by Laura Shigihara. It borrows elements from the pop music genre, as well as console chiptunes. Before the inception of Plants vs. Zombies, Fan asked Laura if she would like to compose the music for his next title after following her for some years. She accepted, owing to his creativity. Shigihara described the music as "macabre, yet goofy". Using the night stage as an example, she used a combination of "Big Band" and swing beats with "several haunting and serious melodies". The songs "Loonboon" and "Brainiac Maniac" were written towards the end of production. She stated that these were reactionary songs that she wrote to fit the feel of the game after having played through it twice. She tried to make the game have a Danny Elfman feel to it, while mixing in melodic tunes and funky beats. She describes a song early in the game, which uses marching band percussion and swing beats. She described another one which used techno beats with organic sounds.[35] Shigihara also composed and performed the music video shown during the credits of the game, titled "Zombies on Your Lawn".[36][37]

Cultural references edit

Plants vs. Zombies uses many cultural references in its names of stages and others. The gravestones' inscriptions ("Expired", "Ceased to Exist", "Just Resting", etc.) were taken from Monty Python's "Dead Parrot sketch". Two of the mini-games—"Zombiquarium" and "Beghouled"—take their names from two other PopCap games, Insaniquarium and Bejeweled respectively.[16][32] Two levels in "vasebreaker" puzzles "Scary Potter" and "Ace of Vase" take their names from Harry Potter and Ace of Base and in "I, Zombie" (a reference to Isaac Asimov's "I, Robot") puzzles there is a level called "Dead Zeppelin" which resembles Led Zeppelin. Originally, the dancing zombie resembled Michael Jackson from the music video "Thriller".[38] Though the Jackson-inspired zombie was present in the game before Jackson's death, the estate of Michael Jackson objected to its inclusion more than a year after his death; PopCap agreed to remove the Jackson-inspired zombie and replaced it with a more generic disco-dancing one for all future patches and releases of the game.[39] Ironically, a "disclaimer" in the game's almanac states "Any resemblance between Dancing Zombie and any persons living or dead is purely coincidental." Some Plants vs. Zombies advertisements parody controversial Evony ads, showing a drooling zombie instead of a voluptuous woman.[40]

A planned name was Lawn of the Dead, a pun on the title of the George A. Romero zombie film Dawn of the Dead. For legal reasons it was changed to Plants vs. Zombies.[34] It spent three years in development, and was released for the PC on 5 May 2009.[32] Since it was released, it has been announced for multiple platforms, including PlayStation 3's PlayStation Network, Xbox 360's Xbox Live Arcade digital distribution service, Nintendo DS, and iOS.[41][42]

The song "Loonboon" was inspired by composer Laura Shigihara's cat, which they named Metroid. She explained that the stage she was composing for was frantic, so she watched Metroid as he ran around the house, jumping off walls and playing with his toy mouse. "Brainiac Maniac" was inspired by older Capcom games, specifically those in the Mega Man series, describing its songs as melodic and complex. She was inspired to make the Plants vs. Zombies music video by her desire to make a theme song for the game. She specifically chose the Sunflower to be the one singing by wanting to have it communicating with the zombies. She later suggested that it be made into a funny flash video, and Rich Werner and Tod Semple, an artist and programmer, respectively, from PopCap came down and worked on it. Once it was completed after two weeks of work, the PopCap marketing team enjoyed it enough that it used it as a marketing tool.[33] Previously, there were no plans to release the soundtrack as a stand-alone item, but Shigihara stated that she wished to do it, so she thought there was a good chance of it.[35] In November 2010, Shigihara released the soundtrack through her Bandcamp page.[43] Individual tracks are sold at USD1 per track or US$10 for the full album.[44] It comes with a cover art designed by George Fan.[43]

Plants vs. Zombies itself was referenced in "The Passing" campaign of Valve's fellow zombie game Left 4 Dead 2, in which the player can stumble upon in-game graffiti attributed to the character of Crazy Dave.[45] A five-level quest chain culminating in a quest entitled "Lawn of the Dead" in the massively multiplayer online game World of Warcraft: Cataclysm is based on Plants vs. Zombies, using Warcraft elements to recreate the gameplay.

[46] had contacted PopCap about the inclusion, and Laura Shigihara was able to record some new music for the Warcraft version of the game.[47]

Zomboni is a zombie riding a Zamboni, an ice-cleaning truck used to clean the ice surface in ice hockey. The zombie riding the Zamboni is a Canadian stereotyped zombie.[48]

References edit

  1. ^ a b c d e "Plants vs. Zombies GOTY Edition". Steam. Valve Corporation. Retrieved 2010-08-11.
  2. ^ a b Ocampo, Jason (2009-04-04). "No Joke — PopCap Reveals Plants vs. Zombies". IGN. Retrieved 2010-08-11. PC and Mac initially, with other platforms under consideration.
  3. ^ "PopCap's Plants vs. Zombies Dances Into Retail for PC and Mac". Popcap.com. Retrieved 2010-03-16.
  4. ^ a b c "Plants vs. Zombies XBLA Dated, Awesome". IGN.com. Retrieved 2010-08-18.
  5. ^ a b "Plants vs. Zombies for Blackberry Playbook". BlackBerry App World. Research In Motion Limited. 2012-02-16. Retrieved 2012-02-16.
  6. ^ a b Cite error: The named reference popcap1 was invoked but never defined (see the help page).
  7. ^ Bailey, Kat (2010-02-15). "Plants vs. Zombies Now Available on iTunes". 1UP.com. Retrieved 2010-02-15.
  8. ^ computerandvideogames.com Tom Ivan (2011-12-13). "PS Vita News: Plants vs. Zombies confirmed for PS Vita". ComputerAndVideoGames.com. Retrieved 2012-01-19.
  9. ^ "Plants vs. Zombies Now Available". Steam. Valve Corporation. 2009-05-05. Retrieved 2010-08-11.
  10. ^ "PopCap Launches Plants vs. Zombies HD App for iPad". Popcap.com. Retrieved 2010-06-14.
  11. ^ Pereira, Chris (2010-08-23). "Plants vs. Zombies Gets Extra Content and Heads to DS". 1UP.com. Retrieved 2010-08-23.
  12. ^ Pereira, Chris (2011-05-31). "Amazon's Android Appstore Gets Another Huge Exclusive: Plants vs Zombies". techcrunch.com. Retrieved 2011-06-09.
  13. ^ Cite error: The named reference Score was invoked but never defined (see the help page).
  14. ^ var authorId = "58575107" by Daemon Hatfield. "Plants vs. Zombies DS Review - Nintendo DS Review at IGN". Uk.ds.ign.com. Retrieved 2012-01-19.{{cite web}}: CS1 maint: numeric names: authors list (link)
  15. ^ Watters, Chris (2009-05-05). "Plants vs. Zombies Review for PC". GameSpot. Retrieved 2010-03-16.
  16. ^ a b c "Plants vs Zombies Review for the PC from". 1UP.com. Retrieved 2010-03-16.
  17. ^ "Review: Plants Vs Zombies". Edge Online. 2009-05-05. Retrieved 2010-03-16.
  18. ^ Cite error: The named reference ign was invoked but never defined (see the help page).
  19. ^ CERO: B ; ESRB: E10+ ; PEGI: 12 ; USK: 6 ; Apple: 9+
  20. ^ "13th Annual Interactive Achievement Awards Finalists" (PDF). Academy of Interactive Arts & Sciences. 2010-01-21. Retrieved 2010-01-24. [dead link]
  21. ^ "Uncharted 2, Flower, Assassin's Creed II Lead Finalists for the Tenth Annual Game Developers Choice Awards". PR Newswire. 2010-01-19. Retrieved 2010-01-24.
  22. ^ "Gamezebo's Best of 2009". Gamezebo. 2009-12-28.
  23. ^ "Plants vs. Zombies is PopCap's fastest-selling game". Joystiq. 2009-05-20. Retrieved 2009-09-05.
  24. ^ "Analysis: The Universal (Brain-Eating) Appeal Of Plants Vs. Zombies". Gamasutra. 2009-05-20. Retrieved 2009-09-05.
  25. ^ Faylor, Chris (2010-02-25). "Plants vs. Zombies iPhone Sets New iTunes App Store Record, Breaks $1M in Nine Days". Shacknews. Retrieved 2010-02-25.
  26. ^ "Plants Vs. Zombies - Beghouled". YouTube. Retrieved 2012-01-19.
  27. ^ "PopCap Preps Plants vs. Zombies for Xbox LIVE Arcade" (Press release). PopCap Games. 2010-07-19. Retrieved 2010-07-19.
  28. ^ Hatfield, Daemon (2010-08-05). "Plants vs. Zombies XBLA Dead Dated, Awesome". IGN. Retrieved 2010-10-10.
  29. ^ Thompson, Michael (2010-03-19). "Aliens in the garden: the secret origin of Plants vs. Zombies". Ars Technica. Retrieved 2010-03-20.
  30. ^ "Desktop Tower Defense". Desktoptowerdefense.blogspot.com. 2007-04-16. Retrieved 2010-03-16.
  31. ^ a b c d e "Interview with Plants vs. Zombies creator George Fan". Gamezebo. 2009-05-22. Retrieved 2009-09-05.
  32. ^ a b c d e f g h i "Flower Defence". Edge. 2009-05-05. Retrieved 2009-09-05.
  33. ^ a b "Game Industry Insider: George Fan". Hobbit Hollow. Retrieved 2009-09-05.
  34. ^ a b c "GameArena Interviews George Fan, Plants vs Zombies Man". Game Arena. 2009-06-05. Retrieved 2009-09-05.
  35. ^ a b "Interview: The Terrifying True Story of The Plants vs. Zombies Soundtrack". Gamasutra. 2009-05-19. Retrieved 2009-09-05.
  36. ^ "Laura Shigihara - Lyrics". Laura Shigihara. Retrieved 2010-08-18.
  37. ^ "Plants vs Zombies Music Video". PlantsVsZombies channel (PopCap Games). Retrieved 2010-08-18.
  38. ^ "Review: Masterful Plants vs. Zombies Proves Less Is More". Wired.com. 2009-05-05. Retrieved 2009-09-05.
  39. ^ Frustick, Russ (2010-07-27). "Michael Jackson Estate Forces 'Plants vs. Zombies' Update". MTV. Retrieved 2010-07-27.
  40. ^ "Plants vs. Zombies Pokes Fun At Cleavage-Filled Evony Ads", The Escapist, 30 Jul 2009
  41. ^ "Plants VS Zombies Pollinating Other Platforms". Kotaku. 2009-07-10. Retrieved 2009-09-05.
  42. ^ "Plants vs Zombies To Gnaw At Retail, iPhones, Your Chest". Kotaku. 2009-08-21. Retrieved 2009-09-05.
  43. ^ a b "Plants vs. Zombies Official Soundtrack now online". Laura Shigihara. 2010-11-22. Retrieved 2011-02-13.
  44. ^ "Plants vs. Zombies Soundtrack". Laura Shigihara. 2010-11-22. Retrieved 2011-02-13.
  45. ^ Good, Owen (2010-04-25). ""The Passing" Also Gives a Shout-Out to Plants vs. Zombies". Kotaku. Retrieved 2010-04-28.
  46. ^ Smith, Quentin (2010-09-20). "Plants Vs. Zombies Quest In WoW: Cataclysm". Rock Paper Shotgun. Retrieved 2010-09-20. {{cite web}}: Text "Blizzard Entertainment OK" ignored (help)
  47. ^ Westbrook, Logan (2010-09-22). "PopCap Delighted With WoW's Plants vs. Zombies Tribute". The Escapist. Retrieved 2010-09-22.
  48. ^ "games like plants vs zombies". Retrieved 2011-05-23.

Plants vs. Zombies has received a positive reception from critics, garnering an aggregate score of 88/100 from Metacritic and an 89.5% from GameRankings.[1][2] IGN editor Andy J Kolozsy commented that it featured a lot more content than other games in the genre, as well as praising its addictive nature.[3] However, the DS version was criticised for its lower quality graphics and expensive price point.[4] GameSpot editor Chris Watters praised the design of the plants and zombies, as well as the visuals and its overall value. However, he found fault in the learning curve.[5] 1UP editor Alice Liang found the game enjoyable, commenting that the lawnmowers that protect the left side of the screen strikes a good balance between ease-of-use and indepth game play.[6] Edge's review praised PopCap Games for adding an imaginative touch to every little detail of the game. He also credited them for taking the tower defense genre and making it their own.[7]

Laura Shigihara's music video also received praise, with Hatfield attributing his interest in the game to the video.[3] Liang also praised the song, asking how anyone could not want Plants vs. Zombies after seeing the video.[6]

[8]

Awards edit

Plants vs. Zombies has been nominated for the "Casual Game of the Year" and "Outstanding Achievement in Game Design" Interactive Achievement Awards from the Academy of Interactive Arts & Sciences.[9] The game received nominations in "Best Game Design", "Innovation", and "Best Download Game" for the Game Developers Choice Awards.[10] Plants vs Zombies was picked by Gamezebo as one of the 'Best games of 2009'.[11]

Sales edit

To date, Plants vs. Zombies is the fastest-selling video game created by PopCap Games.[12] Plants vs. Zombies director George Fan estimated that half of the game's sales are from hardcore gamers.[13]

According to PopCap, the iOS release of Plants vs. Zombies sold more than 300,000 copies in the first nine days it was available on the App Store, generating more than $1M in gross sales, and considered it "the top-grossing iPhone launch".[14]

  • Cite error: The <ref> tag has too many names (see the help page). had contacted PopCap about the inclusion, and Laura Shigihara was able to record some new music for the Warcraft version of the game.[16]

External links edit

  1. ^ "Plants vs. Zombies". Metacritic. 2009-05-05. Retrieved 2010-03-16.
  2. ^ "Plants vs. Zombies". GameRankings. Retrieved 2010-03-16.
  3. ^ a b Hatfield, Daemon (2009-05-05). "Plants vs. Zombies Review - PC Review at IGN". Pc.ign.com. Retrieved 2010-06-30.
  4. ^ Cite error: The named reference var authorId = 58575107 by Daemon Hatfield was invoked but never defined (see the help page).
  5. ^ Cite error: The named reference Watters was invoked but never defined (see the help page).
  6. ^ a b "Plants vs Zombies Review for the PC from". 1UP.com. Retrieved 2010-03-16.
  7. ^ Cite error: The named reference Review: Plants Vs Zombies was invoked but never defined (see the help page).
  8. ^ CERO: B ; ESRB: E10+ ; PEGI: 12 ; USK: 6 ; Apple: 9+
  9. ^ "13th Annual Interactive Achievement Awards Finalists" (PDF). Academy of Interactive Arts & Sciences. 2010-01-21. Retrieved 2010-01-24. [dead link]
  10. ^ Cite error: The named reference PR Newswire was invoked but never defined (see the help page).
  11. ^ "Gamezebo's Best of 2009". Gamezebo. 2009-12-28.
  12. ^ Cite error: The named reference Joystiq was invoked but never defined (see the help page).
  13. ^ "Analysis: The Universal (Brain-Eating) Appeal Of Plants Vs. Zombies". Gamasutra. 2009-05-20. Retrieved 2009-09-05.
  14. ^ Cite error: The named reference Faylor was invoked but never defined (see the help page).
  15. ^ "Plants vs. Zombies: Credits". Popcap.com. Retrieved 2010-06-30. [dead link]
  16. ^ Cite error: The named reference Westbrook was invoked but never defined (see the help page).