Jin bomb puzzle solution on Disc 1 (wire cutter):
Get the wire cutter from the wire box.
Orange button: Cut red and yellow wires.
Pink button: Cut red and blue wires.
Green button: Cut blue and yellow wires.
Expert mode:
Go to the options, then select "Credits", then press Down(3 times),
Triangle, Down(3 times), Square, Left, Right for harder enemies.
Invincibility:
Go to the options, then select "Credits", then press L1, Triangle, Up,
Down, Circle, Circle, Triangle, Square, Right, Square.
One hit kill with firearms:
Go to the options, then select "Credits", then press L1, Triangle, Up,
Down, Circle, Circle, Triangle, Square, Down, R1.
No enemy AI:
Go to the options, then select "Credits", then press L1, Triangle, Up,
Down, Circle, Circle, Left, Left, L1, L2.
Instant puzzle solution:
Go to the options, then select "Credits", then press L1, Triangle, Up,
Down, Circle, Circle, Down(3 times), Up.
Puzzle solutions:
To match each of the 6 shapes, you must move 8 points in one of
four directions (either up, down, left, or right) then press X
to move to the next point.
1st shape: Up, up, up, up, up, up, up, up.
2nd shape: Down, up, down, up, down, up, down, up.
3rd shape: Down, down, down, down, down, down, down, down.
4th shape: Up, down, up, down, up, down, up, down, up, down.
5th shape: Down, left, down, left, down, left, down, left, down, left.
6th shape: Down, right, down, right, down, right, down, right, down, right.
Avoid damage:
Hold R2 and any direction on the D-pad to avoid damage.
Non-tested cheats:
Maximum ammo
Enter the options screen and choose the "Credits" selection. Then,
press L1, Triangle, Up, Down, Circle(2), Triangle, Square, Left,
Triangle.
Rapid fire
Enter the options screen and choose the "Credits" selection. Then,
press L1, Triangle, Up, Down, Circle(2), Up(3), Down.
Instant death with all Melee weapons
Enter the options screen and choose the "Credits" selection. Then,
press L1, Triangle, Up, Down, Circle(2), Triangle, Square, Down, L1.