Critical Depth Cheats
Hold R2 and press Right, Left, Down.
While playing press L1, R1, L1, R1, Up, Down, Left, Right.
While playing press L1, R1, L1, R1, Up, Down, Left, Down.
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.
To do four times the normal damage, press R1, R2, R1, R2, Up, Down, Up, Down while playing.
10/26/99 Brian C.