==CODES==

-Button Codes-
Enter at the title screen to activate the corresponding effect.
+--------------------------------------------+-----------------------------------------------+
| Code                                       | Effect                                        |
+--------------------------------------------+-----------------------------------------------+
| Left, Left, B, A, Up, Down, A, Right       | 9 Lives                                       |
| Up, B, Left, A, Right, B, Down, A          | Don't need to let go of A or B while shooting |
| B, A, B, B, A, B, A, A                     | Level 3 Tank                                  |
| Down, Left, Up, A, Right, Right, B, Up     | Options Menu                                  |
| Up, Up, Down, Up, Left, Right, Right, Left | Random blocks from shovel power-up            |
| Down, Up, Up, Down, Left, Right, A, B      | Unlock all Levels                             |
| A, Down, A, Up, A, Right, B, Left          | View Credits                                  |
+--------------------------------------------+-----------------------------------------------+


==SECRETS==

-Level Select-
When you start a new game and the screen tells you that you're on level 1, press  to reach the desired level number. When you've chosen the level that you want, press  to go there.