Invincibility
Press Option 2 during game play to display the "Bomb Parts" screen while not standing next to a monitor. Press Up, Right, Up, Left, Down. A sound will confirm correct code entry. Note: Repeat this code to return to normal.
Level select
Press Option 2 during game play while standing next to a monitor. Press Down, Up(5), Right. A sound will confirm correct code entry. Press Up or Down to change the level number that is displayed in the lower right corner of the screen. Pressing Up or Down will also toggle the score from "00000" to "00128" to indicate where the starting location within the level will be the beginning or the end. Press Option 2 to start game play at the indicated level.
Weapon power-up
Press Option 2 during game play to display the "Bomb Parts" screen while not standing next to a monitor. Press Down(4), Right, Up, Option 2 to set all weapons to full. Note: This code may be repeated as needed.
