Level select: Hold L + R + X + A on controller
two, then press Start on controller one at the options
menu.
Unlimited lives: Press X, A, Y(2), A, Y,
X at the "Start" menu.
Invincibility: Press X, Y(3), B(2), X,
A, B at the "Start" menu.
No enemies: Press X(2), A, B, Y, A,
Y(2) at the "Start" menu.
One hit kills: Press X(5), Y, B(2), A,
B, A, B at the "Start" menu.
Hint: Level 1-1: Defeating the sewage area
Boss: At the end of level 1-1 you will meet up with the Boss
alien of the sewage area. After a fast eight or nine seconds of
the alien being submerged, hold down your laser button. When he
rises from the aquatic sludge, turn in his direction and release
the button.
Information in this section was contributed by TRGEFLOW.
