Controls
Move: Arrow Keys
Fire: Z
Bomb: X

Pause: Enter, Space Bar

Cheats

5 Bombs:
At the title screen, select "New Game" while the background is flashing white. If timed correctly, you'll start with 5 bombs instead of 3.

Hidden 1UP:
On stage 3, just before you reach the open harbour you'll see a blue box with a '?'. Don't shoot at it (if you have homing missiles or a wide-spread gun, let go of the FIRE key).

A tank will emerge from its base and run over the box, breaking it and releasing a 1UP.

Invisibility Mode:
Press CTRL During the takeoff sequence following stage 5. A textbox will appear in the lower-right hand corner of the screen; Type in 'go0gleypower' and you'll remain invisible for 20-30 seconds of stage 6.

Grab the Ruby just as you return to normal for another 1UP.

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