On the title screen type "PLINKERTY PLONKERTY" and press Help to activate the cheat mode. The message "Cheat Mode Activated" will be displayed. This will give you invincibility and access to the following keys during play:
F10 - Fight the Alien Queen
Left Cursor - Move one screen to the left
Right Cursor - Move one screen to the right
Up Cursor - Move one screen up
Down Cursor - move one screen down
On the title screen type "GOODBYE BACKDROPS" and press Return to disable backdrops. The message "Backdrops Removed" will be displayed.
Map Room Codes:
Map 0 - 963
Map 1 - 321
Map 2 - 149
No maps found.