All levels and helicopters
Enter R, C-Left, Right, Up as a password to unlock all levels and helicopters.

Level passwords

2
Up, Down, Left, Right
3
Up, Down, Left, Up
4
Down, Up, Left, Right
5
Down, Up, Left, Down
6
Down, Up, Right, Down
7
Left, Down, L, Up
8
Left, Down, L, Down
9
Left, Up, L, Down
10
L, Up, Left, Down
11
L, Up, Left, Up
12
L, Up, L, Down
13
L, Down, Up, Left
14
R, C-Left, Up, Right
15
C-Down, L, Down, Down
16
R, C-Left, Right, Up