Don't fall if you drive off the edge by Tony Hedstrom
Game Genie
RZBT-A6YG
Drive thru obstacles (pencils, waffles, etc) by Tony Hedstrom
Game Genie
A3GA-AA8Y
BVGT-AA2C
A3GA-AA74
Freeze CPU Cars - Challenge Race by VisitntX, terpsfan101
Raw
FFA7C7:0000
FFA8B1:0000
FFA99B:0000
Infinite Lives by terpsfan101
Raw
FFA6C7:0009
MUCH higher top speed by Tony Hedstrom
Game Genie
FTSA-AA3E