Developer Page: Supersonic
(dev id no. 6 - prev next)

Actually a UK developer, D3 just picked up the PS2 version of their game "Mashed: Fully Loaded" (damn good 4-player, by the way) for release in Japan as a Simple2000 Ultimate title. Other than that, their most notable games seem to have been Micro Machines 2 and 4. Multiplayer racing specialists, then. Still, they're good at what they do.
Official Site:

Simple 2000 Ultimate Series
Tousou! Kenka Grand Prix ~Drive to Survive~ (Mashed: Fully Loaded)

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