In the first level do not shhot at the toasters-they will begin to
 shoot back. Do not shoot the orange peeople transporters, this will
 attract more SAP's. 
 
 During the game,you either pause or keep the game running enter...
 XYZZYMMMM-This code lets you skip directly to the boss.
 
 Im not so sure about this one but it should work,
 BAMBAMBAM {another BAM?} - Gives you rapid fire.