==CODES==

-Codes-
+---------------+------------------------------------+
| Effect        | Code                               |
+---------------+------------------------------------+
| Invincibility | A, L, L, Y, A, L, L, Y, A, L, L, Y |
+---------------+------------------------------------+

-Infinite Ammo-
While playing, pause the game and press the following buttons:
+---------------+---------------+
| Effect        | Code          |
+---------------+---------------+
| Infinite Ammo | X, Y, X, X, Y |
+---------------+---------------+