Invincibility:
During the game, when not standing next to a monitor, press OPTION 2 to see the "bomb parts" screen.
Press Up, Right, Up, Left, Down.
The game will buzz, and you're invincible.
Doing the trick again turns off invincible mode.
Weapon Power-Up:
During the game, when not standing next to a monitor, press OPTION 2 to see the "bomb parts" screen.
Press Down, Down, Down, Down, Right, Up, Option 2.
You'll have all weapons at full strength.
Repeat as necessary.
Stage Select:
Stand next to a monitor, then press OPTION 2.
Press Down, Up, Up, Up, Up, Up, Right.
The game will buzz.
Now press up or down to choose a level; the number in the lower-right corner of the screen indicates the level number.
Pressing up and down also toggles the score between 00000 (go to start of level) and 00128 (go to end of level).
When you've got the level you want, press OPTION 2 to go there.
Last updated 11-19-97 Troy H. Cheek