Ending Sequence
Press Start to access the green title screen, then press Up, Down, Right, Left, A, B, C, Start.
Extra Bombs
While playing, pause the game and press Up, Down, Right, Left, then unpause while holding B. You'll immediately receive 8 bombs. You can repeat this trick as often as you like.
Level Select
At the title screen, press Start to get the green Options screen. Now press Up, Down, Right, Left, Start and a level select screen will appear.
Power-Ups
While playing, pause the game and press Up, Down, Right, Left, then unpause while holding A. This will immediately power up your weapon to near maximum.
