Critical Depth Cheats
Surface Mine
Hold R2 and press Right, Left, Down.
Invincibility
While playing press L1, R1, L1, R1, Up, Down, Left, Right.
Infinite Weapons
While playing press L1, R1, L1, R1, Up, Down, Left, Down.
Guided Missiles
Press and hold TRIANGLE, then press R1+L1 simultaneously to fire a guided missile. You can now direct it with the d-pad or detonate the missile at any time by pressing R1 and L1.
Quad Damage
To do four times the normal damage, press R1, R2, R1, R2, Up, Down, Up, Down while playing.
10/26/99 Brian C.
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