N2O: Nitrous Oxide Cheats & Tips

To access level 18, have this as a password..

CIRCLE, TRIANGLE, CIRCLE, CIRCLE, TRIANGLE, SQUARE, SQUARE, X

At the Password Screen:

SQUARE, SQUARE, SQUARE, TRIANGLE, CIRCLE, TRIANGLE, SQUARE, SQUARE.

Enter the following code at the Password screen:

Square - Triangle - X - Triangle - Circle - Square - Triangle - X

Then the bonus points should not reset.

Go into the enter code screen and enter the following code:

Square - Square - X - Circle - Circle - Circle - Circle - Triangle

At the Password screen:

X, X, SQUARE, X, X, X, TRIANGLE, TRIANGLE.

At the Password Screen:

CIRCLE, X, X, TRIANGLE, SQUARE, TRIANGLE, SQUARE, CIRCLE

At the Password Screen:

SQUARE, X, CIRCLE, SQUARE, X, SQUARE, CIRCLE, SQUARE.

Level / Code

2 O,X,X,X,S,O,S,X
3 O,X,O,O,S,T,X,T
4 O,O,T,O,T,O,S,S
5 S,T,S,T,S,T,T,O
6 S,S,O,S,T,X,T,X
7 X,T,O,S,X,T,O,T
8 S,O,O,T,T,S,T,S
9 S,O,X,T,S,S,X,O
10 X,T,S,O,T,X,X,X
11 O,S,T,S,O,T,S,T
12 O,X,X,X,T,X,X,X
13 S,T,T,O,O,X,O,O
14 S,S,T,O,O,T,O,X
15 O,T,X,S,O,T,T,T
16 O,S,T,X,O,O,O,S
17 X,O,T,X,S,S,S,O
18 O,T,O,O,T,S,S,X
19 S,X,O,S,O,X,X,T
20 O,S,T,S,S,S,S,S
21 O,O,O,O,T,X,T,O
22 O,X,O,T,X,O,T,X
23 S,S,T,O,X,O,T,S
24 O,O,S,T,S,T,T,S
25 O,X,T,X,S,T,X,O
26 S,O,O,O,X,O,X,X