Nightmare Creatures

Level Passwords
Key:
S - Square
C - Circle
T - Triangle
X - X
R - Right / L - Left / U - Up / D - Down
Level
Password
2
U, C, T, L, T, S, X, C
3
U, X, C, T, T, D, S, U
4
U, S, T, X, T, S, U, C
7
T, L, T, X, C, L, C, X
8
T, R, T, U, C, C, X, S
9
C, T, T, X, C, C, S, X
10
C, C, T, R, T, U, D, D
Cheat Mode
At the Password screen, enter Left, Up, X, Square, Down, Triangle, Square, Down. You can now enable Infinite everything, play as a monster, and choose your starting level.
Reduced Size
First enter the Cheat Mode code, then press L2, L2, R1, R1, L1, R2.
Easy Kills
First enter the Cheat Mode code, then press L1, R1, L2, R2, Select.
Disable Combination Attacks
First enter the Cheat Mode code, then press L1, R1, L2, L1, R2, Select.
Level Select
At the Title screen, press L1, L1, L2, R1, R1, R2, Select.
Blurry
First enter the Cheat Mode code, then press L1, L2, L2, L1, L2, L2, L1, Select.
Alternate Music
First enter the Cheat Mode code, then press L1, L1, L1, R1, R1, R1, Select.
Debug Mode
First enter the Cheat Mode code, then press L1, L1, L1, R1, R1, R1, L2, L2, L2, R2, R2, R2, Select.