Alien Carnage, released initially as Halloween Harry, is a side-scrolling platform game that was released as freeware.This game was deleted from Apogee's product back on April 21, 2000, and was re-released as freeware on May 24, 2007. The rightsholder to this title is John Passfield, one of the original creators of the title as published through Apogee.The cartoon-style game features agent Halloween Harry, who has to save the world from aliens that want to take over control of Earth by turning its population into green-skinned zombies. Some of the enemies reference Aliens, Gremlins, and Elvis Presley. Harry is helped by controller Diane, who gives him information via a video link.Alien Carnage - Halloween Harry is portable and will not run on most operating systems from XP forward. Because of this, you will need a DOS emulator like DOSBox or download the 2014 Windows compatible version on Steam.