The game was based upon an abandoned project called Attack of the Mutant Zombie Flesh Eating Chickens From Mars by Matthew Smith. It has maintained popularity not only for its gameplay, but also for its memorable music. 
The game's plot involved captain Rover Pawstrong (a dog in a space suit) in his adventures on a planet, attempting to eat 20 Space Griffins (essentially large, fast chickens). Gameplay involves the player's character running back and forth on a side-scrolling planet surface, attempting to catch the Griffins. The player finds crates which contain items that the player can use to help catch the bird - or the player can simply try and run and jump on top of the bird, thus catching it. During playtime, there is a time limit by which a bird must be caught (indicated by a roast chicken slowly turning into chicken bones), or else the game ends. At later stages in the game, the player must navigate abandoned mines, where the Griffins may be hiding, and even use a mortar to shell Griffins as they move across a landscape.
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