This is a liberated game: it was originally shareware, but in December 2005 Apogee Software released the full version as freeware.
Try out some of the secret weapon attacks hidden in the game:
Super Plasma Bolt: Hold the up arrow until you hear a charge sound, then press the fire key.
Fireball Attack: Turn left and right 6 or 7 times in a row, then press the fire key.
Electron Shield: Turn left and right 6 or 7 times in a row, then press the jump key.
Invincibility Burst: Hold the up arrow until you hear a charge sound, then press the down arrow key.
Full weapons: Press the following three keys together during gameplay: C-A-T. You will receive the machine gun, 99 ammo and 99 grenades. Note that this only works in the registered version!
Description by VGTips
Also known as Halloween Harry
Platform, 1993
Full version, Extra
Dev: | Interactive Binary Illusions, SubZero Software |
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Pub: | Apogee Software |
Also known as Keen 4: Secret of the Oracle
Platform, 1991
Shareware (installed), Shareware, Shareware, FAQ, FAQ
Dev: | id Software |
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Pub: | Apogee Software |
Also known as Alladin, Alladdin
Platform, 1994
Playable demo (installed), Playable demo
Dev: | Virgin Interactive Entertainment |
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Pub: | Walt Disney Computer Software |