Cheat mode: Press Start at the title screen, then press
B, A, Select(2), B, A, Left(2).
A cheat menu with level select and permanent shield will be unlocked.
Invincibility in Classic mode: Press Start at the title screen, then press
Left, A, Select(2), Up(2).
Maniacal difficulty: Press Start at the title screen, then press
B, A, Down, B, A, Down,
B, Up, Select.
Special mode: Press Start at the title screen, then press
Left, R, L, Right, Left, R,
L, Right.
Classic mode: Enter CLSS 1281 999DBM as a password.
Information in this section was contributed by joeuow832717.
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
Information in this section was contributed by joeuow832717.
