Combo passwords
JTTSJ Infinite Lives (Enter this one in first)
HVZSM Invincibility (Enter this one in last)
Enter both these codes to become Indestructable.
CTGXF Level Select (Enter this one in first)
XLQMB Last Level Code (Enter this one last)
Enter both of these to play the last level
Single Passwords
JTTSJ Infinite Lives
WSVTQ Infinite Ammo
CTGXF Level Select