Level skip: Every level has a location that allows you to advance
to the next level by pressing Option 1 + Option 2
+ A + B.
Information in this section was contributed by raynor35.
Floating shield: Activate a forward shield, then press Option 1
+ Pause to restart the game. The shield will be floating
in front when game play resumes. Note: The shield will turn to
normal after you fire a weapon.
Level 19 bird: Wait until a bird to appear from the left side on level
19. Jump on the bird as it approaches and ride it across the screen
to pass the difficult sections of the level. Jump to the right
with each bounce to stay above the same bird. Kill the bat when
it appears.
