Extra ships: Press the D-pad at least fifty times in any
direction during demonstration mode. Begin game play and collect
at least $10,000 before entering a shop. Nine ships may now be
bought for $9,000.
Bonus points: Hamburgers are worth $1000 during the first thirty
seconds of level 1.
Unlimited laser, wide beam, and seven-way
shot time: Buy all the big engines (Big Wings, Jet Engine, Turbo
Engine, and Rocket Engine) before buying a weapon.
