New Zeeland Story
Pause the game, and press 'M'. You should hear a laser gun sound.
Type 'MOTHERFuckENKIWIBasTARDS' Unlimited lives are yours.
Or, on level 2.4, stand at the entrace to the room with the giant
octopus is located and fire to the right a few times.
A warp will appear that will take you the beginning of level 3.1.