All power-ups and extra lives:
Enter CLASSIFIED as a name on the high score 
screen. The name entry will change to "WRONG…
" to confirm correct code entry. Begin a new game 
to start with all power-ups and 15 lives. 

Extra weapons:
Enter Terminator (original version) or BlooDSporT 
(Macho edition) as case-sensitive names on the 
high score screen.