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Four Trax (フォートラックス, Fō Torakkusu) is a racing arcade game, released by Namco in 1989; it runs on Namco System 2 hardware, and was later ported to the Sega Genesis in 1991 under the name Quad Challenge. The game was distributed by Atari Games in North America. The players must take control for four quad bikes (red for Player 1, white for Player 2, yellow for Player 3, and green for Player 4),[1] which are competing in an "off-road" race - and they all have a preset amount of time in which to complete a full lap of the track, but for each lap of the track that is successfully completed, the players' time is extended. However, if one of the players cannot manage to successfully complete his current lap of the track before the time runs out, his or her game will instantly be over and the race will continue without him or her; the players must complete between three and six full laps of the track in order to win (the number is dependent on how both of the cabinets are set, as with Namco's own Final Lap). The players will also encounter between four and seven blue CPU-controlled bikes on the track, as the number is dependent on how many people are playing (seven for one player, six for two players, five for three, and four for four).

Four Trax
Four Trax flyer.jpg
Arcade flyer
  • JP: November 1989
Mode(s)Up to 4 players simultaneously
Arcade systemNamco System 2
CPU2x Motorola 68000 @ 12.288 MHz,
1x Motorola M6809 @ 3.072 MHz,
1x Hitachi HD63705 @ 2.048 MHz
Sound1x Yamaha YM2151 @ 3.57958 MHz,
1x C140 @ 21.39 kHz
DisplayHorizontal orientation, Raster, 288 x 224 resolution