N2O: Nitrous Oxide [PSX]

Secret Ship Code:
Get into the Enter Code Screen and then enter the following code...

X-X-X-S-T-C-X-T

Water mode:
Enter Circle, X, Square, Triangle, Triangle, Circle, Triangle, Circle as a password.

Unlimited lives:
Enter Circle, X, X, Triangle, Square, Triangle, Square, Circle as a password.

Level select:
Enter Square, Circle, X, Triangle, Triangle, X, Circle, X as a password. Any level up to level 30 may be selected. Alternatively, enter Square, Triangle, Circle, Triangle, X, Triangle, Square, X as a password.

Bonus level select:
Enter Square, Square, Square, Triangle, Circle, Triangle, Square, Square as a password.

Weapons:
Enter Square, X, Circle, Square, X, Square, Circle, Square as a password.

Firewalls:
Enter X, X, Square, X, X, X, Triangle, Triangle as a password.

Hidden ship:
Enter X, X, X, Square, Triangle, Circle, X, Triangle as a password.

No bonus points reset:
Enter Square, Triangle, X, Triangle, Circle, Square, Triangle, X as a password.

Disable cheats:
Enter Square, Square, X, Circle, Circle, Circle, Circle, Triangle as a password.

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Level Password
3 Circle, X, Circle, Circle, Square, Triangle, X, Triangle
4 Circle, Circle, Triangle, Circle, Triangle, Circle, Square, Square
5 Square, Triangle, Square, Triangle, Square, Triangle, Triangle, Circle
6 Square, Square, Circle, Square, Triangle, X, Triangle, X
7 X, Triangle, Circle, Square, X, Triangle, Circle, Triangle
8 Square, Circle, Circle, Triangle, Triangle, Square, Triangle, Square
9 Square, Circle, X, Triangle, Square, Square, X, Circle
10 X, Triangle, Square, Circle, Triangle, X, X, X
11 Circle, Square, Triangle, Square, Circle, Triangle, Square, Triangle
12 Circle, X, X, X, Triangle, X, X, Square
13 Square, Triangle, Triangle, Circle, Circle, X, Circle, Circle
14 Square, Square, Triangle, Circle, Circle, Triangle, Circle, X
15 Circle, Triangle, X, Square, Circle, Triangle, Triangle, Triangle
16 Circle, Square, Triangle, X, Circle, Circle, Circle, Square
17 X, Circle, Triangle, X, Square, Square, Square, Circle
18 Circle, Triangle, Circle, Circle, Triangle, Square, Square, X
19 Square, X, Circle, Square, Circle, X, X, Triangle
20 Circle, Square, Triangle, Square, Square, Square, Square, Square
21 Circle, Circle, Circle, Circle, Triangle, X, Triangle, Circle
22 Circle, X, Circle, Triangle, X, Circle, Triangle, X
23 Square, Square, Triangle, Circle, Triangle, X, Circle, Triangle
24 Circle, Circle, Square, Triangle, Square, Triangle, Triangle, Square
25 Circle, X, Triangle, X, Square, Triangle, X, Circle
26 Square, Circle, Circle, Circle, X, Circle, X, X
27 Square, Square, Triangle, Circle, X, X, Square, Triangle
28 X, X, Circle, Triangle, Square, Circle, X, Square
29 Square, Square, Circle, Circle, Circle, Circle, Circle, Circle

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Hint: Easy money:
Shoot the cocoons with the Rapido weapon (sounds like a machine gun). Three maxed-out coins will appear.