Filename: Commander Keen 4.dos
Name: Commander Keen: Episode 4 - Secret of the Oracle
Rating: unknown
Released: 1991
Developer: id Software
Publisher: Apogee Software
Genre: Platform
Players: 1
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The two episodes of Commander Keen in Goodbye, Galaxy are side-scrolling platform video games: the majority of the game features the player-controlled Commander Keen viewed from the side while moving on a two-dimensional plane. The player can move left and right and can jump, and can use a pogo stick to bounce continuously and jump higher than they can normally with the correct timing.
The first episode contains a variety of alien creatures, including large slugs, giant bouncing mushrooms, and flying bats.