Welcome to the FX codes
Blue codes are old, they can be found everywhere or in a few places.
Red codes I've found in mags and sites but I can't get them to work. (they are probably fake)
Green codes- I don't have this game so I can't test it.
Orange codes are discovered by me, you might find them elsewhere but they were here first.
Sonic Drift 2
Speed Start - Push on the gas after the second light comes on
Easy Mode - Go to options and select "hard" exit then enter options again, it says "norm" but it's really on easy