The Simpson`s: Road Rage
At the Options menu, hold L + R and then press:
Extra money – Y(x4)
Night time – A(x4)
Flat characters – X(x4)
Show collision lines – B(x2), A(x2)
Drive red soapbox car – B(x2), Y, X
Drive nuclear bus – B(x2), Y, A
Thanksgiving mode – B(x2), X(x2)
Christmas mode – B(x2), X, B