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Commander Keen: Aliens Ate My Babysitter!

aka: Commander Keen in "Aliens ate my Babysitter!"

Description official descriptions

Commander Keen 6: Aliens Ate My Baby Sitter! is a platform game, the sixth in the Commander Keen series as a whole.

Molly, the babysitter of Billy "Commander Keen" Blaze (an eight-year-old genius) has been kidnapped by the Bloogs from the planet Fribbulus Xax, for purely gastronomical purposes. Keen must set out to Fribbulus Xax to save her!

The game begins with a top-down map of the Fribbulus Xax. This is the level select screen, where Billy can walk around and the player can choose the next level they want to enter; however, some places on the map require the player to find specific items (such as a grappling hook) to get through. On each level, Billy has to make his way to the exit. Once a level is completed, Billy ends up back on the overhead map.

The levels are full of enemies, including the club-wielding Blooguards, the Flects which can reflect Billy's shots with their teeth, and Nospikes which charge at him in hopes of impaling him. There are also many deadly hazards. If Billy gets shot or touched by an enemy, or falls into a pit or touches something hazardous, he dies and loses one life.

Thankfully, Billy can stun most enemies with his raygun. He also carries a pogo stick which allows him to jump very high. Other items to find include: ammo, gems that are needed to open locked doors, bonus items which give score, bird-like "Vivas" (100 of them give an extra life) and the rare Queen Viva which gives an extra life.

Groups +



Credits (DOS version)

7 People

Graphics / Artwork
Creative Director
Level Design
Cover Illustration




Even though this is the last game in the series, this was not the last one to be created. Commander Keen 5: The Armageddon Machine was created after Commander Keen 6: Aliens Ate My Baby Sitter! because the latter had to go to retail and that required lead time.


In contrast to the former entries in the series, this game is commercial instead of shareware. FormGen convinced id to put copy protection in the game.

Planned trilogy

This game was planned to be the start of another trilogy and the ending leaves a remarkably large gap for a sequel(s). It even makes a promise for 'the biggest adventure yet' in Christmas '92. The crew then tripped on the distraction that changed the path of PC gaming, Wolfenstein 3D.

Information also contributed by Brolin Empey and John Romero

Related Games

Commander Keen: Keen Dreams
Released 1991 on DOS, 2013 on Android, Windows...
Commander Keen: Keen Dreams - Definitive Edition
Released 2020 on Nintendo Switch, Wii U, 2022 on Xbox One
Commander Keen Combo CD
Released 1998 on DOS, 2007 on Windows
Commander Keen 3: Keen Must Die!
Released 1990 on DOS
Commander Keen: Robot's Revenge!
Released 2000 on Windows

Related Sites +

Identifiers +

  • MobyGames ID: 1581


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Contributors to this Entry

Game added by Terok Nor.

Additional contributors: Yeah No, Xantheous, Steve Hall, Frenkel, formercontrib, Patrick Bregger.

Last modified February 27th, 2023.