Level Select:
When you see the words "Press Start" at the Title screen, press C-UP seven
times.
Alien Disruptor :
Beat level 7 on Expert difficulty.
View Chopper :
At the Chopper Select screen, highlight (don't select) a chopper and then
press L. This will take you to a screen showing the chopper rotating. You can
control the chopper's rotation using the control stick.
View the President :
During a game, press Z, C-UP, and C-DOWN at the same time and the launch a
homing cluster. The President will jump out if it hits.
