Various cheats

     Bring  up  the Objecrives screen, this doesn't pause so make sure
you're  safe,  then  enter  these  codes in quickly. For the Never Die
cheat, make sure you don't fall into an abyss.

Cheat code:                                                Effect:
B, A, X, Y, left, right, left                              Ammo Refill
Up, up, down, down, left, right, left, right, B, A         Get Everything 
Down, up, down, down, up, right, left, right, Y, X, X, A   Never Die