Get unlimited ammo -
First pause the game and select the map page then put in Y,X,X,B,Y,X,X,B. a engine rewing will indaicat correct code entry.

Get max health -
First pause the game and select the map page then put in x,b,x,b,x,b,x,b. A engine reving will indicate correct code entry.

Get more money -
First pause the game and select the map page then put in y,b,y,b,x,a,x,a,down,up.