Space Invaders EX

Cheats

Access Cheat Menu, access maniacal skill level and invincibility in classic mode

When you first turn on the game, at the screen where it says SPACE INVADERS please press start, enter one of the following codes,
Code                    Effect
B, A, SELECT, SELECT, B, A, LEFT, LEFT,	Access Cheat menu (level select and permenent shield)
LEFT, A, SELECT, SELECT, UP, UP,	Invincibility In Classic Mode
B, A, DOWN, B, A, DOWN, B, UP, SELECT	Unlock Maniacal Skill Level


Passwords
Level Passwords

Password                Effect
clss 1281 999dbm        Classic Mode
wwyx tc2n qw79vy        Level 2 (Earth)
?wz4 vcln 4w81v?        Level 3 (Mars)
rssn 3qj7 8?gjmc        Level 4 (Jupiter)
wspz mso8 n?h8nf        Level 5 (Saturn)
cv1? qwkg j3x8r5        Level 6 (Uranus)
hv27 rw1g n3yor7        Level 7 (Neptune)
mv7h rclh 3zsr9         Level 8 (Pluto)
rv8r rc2h x3?rjc        Level 9 (Alien Home)