==CODES==

-Level Passwords-
At the password screen, enter the following button combinations:
+--------------------------------------------+-----------------------+
| Effect                                     | Code                  |
+--------------------------------------------+-----------------------+
| All Levels Open, All Helicopters Available | R, C-Left, Right, Up  |
| Level 10                                   | L, Up, Left, Down     |
| Level 11                                   | L, Up, Left, Up       |
| Level 12                                   | L, Up, L, Down        |
| Level 13                                   | L, Down, Up, Left     |
| Level 14                                   | R, C-Left, Up, Right  |
| Level 15                                   | C-Down, L, Down, Down |
| Level 16                                   | R, C-Left, Right, Up  |
| Level 2                                    | Up, Down, Left, Right |
| Level 3                                    | Up, Down, Left, Up    |
| Level 4                                    | Down, Up, Left, Right |
| Level 5                                    | Down, Up, Left, Down  |
| Level 6                                    | Down, Up, Right, Down |
| Level 7                                    | Left, Down, L, Up     |
| Level 8                                    | Left, Down, L, Down   |
| Level 9                                    | Left, Up, L, Down     |
+--------------------------------------------+-----------------------+