Space Invaders Codes -

 

Cheat mode:
Press at the title screen, then press , , (x2), , , (x2). A cheat menu with level select and permanent shield will be unlocked.

Invincibility in Classic mode:
Press at the title screen, then press , , (x2), (x2).

Maniacal difficulty:
Press at the title screen, then press , , , , , , , , .

Classic mode:
Enter CLSS 1281 999DBM as a password.

Level	Name	Password
2	Earth	WWYX TC2N QW79VY
3	Mars	?WZ4 VCLN 4W81V?
4	Jupiter	RSSN 3QJ7 8?GJMC
5	Saturn	WSPZ MSO8 N?H8NF
6	Uranus	CV1? QWKG J3X8R5
7	Neptune	HV27 RW1G N3YOR7
8	Pluto	MV7H RCLH 3ZSR9
9	Alien Homeworld	RV8R RC2H X3?RJC