Cheats:

 Enter your name on the high score table as 'CLASSIFIED'. Your name
 will appear as 'WRONG...' Next game you will have 15 lives and all
 power-ups from the start.

 Original version : Blast stuff until you have a high enough score
 to get onto the high score table. Then enter your name as Terminator.
 Now check out your firepower.

 Macho edition : As above but use the name BlooDSporT (that's case
 sensitive)