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Metaforce, previously known only as "Action Adventure", was a canceled first-person shooter game in development by Retro Studios in 1998, echoes of which later found their way into Metroid Prime. Jack Mathews publicly revealed the name Metaforce in 2018, which was repurposed as the codename for Prime.[1]


There was only one main story really, three hot chicks kicking butt!

Little is known about the plot other than that it would have had three female protagonists, all of whom wore form-fitting space suits and resembled Samus Aran. One of them was named "Miko".[2] The main antagonist of the game is described as a "Neo-Nazi". Other characters in the game included a guard with a barcode on his uniform, a "Ninja Monk" and "BloodMonkey"[3]. The game was set on a post-apocalyptic planet in the near future.[4][5]

Metroid Prime[]

Contrary to popular belief, the game did not evolve into Metroid Prime in the same way that Metroid 1.5 evolved into its sequel. Shigeru Miyamoto visited Retro Studios in Austin, Texas and did not like Retro's projects, with the exception of Metaforce. The game's engine was heavily retooled as development went on. According to a source of EGM in 2001, two of the "hot chicks" had been modeled and concept artwork had been done, but little else.[6]

Weeks prior to SpaceWorld 2000, Retro was granted use of the Metroid license, and the decision was made to cancel Metaforce.[7] Very little of the game is known to have survived, apart from concept artwork and tech demos, seen below.

Concept artwork[]

The game only made it as far as the concept artwork phase and it is unlikely that a playable beta exists, if it ever did. The artwork was drawn by Arnie Jorgensen, who left Retro just after the arrival of Andrew Jones.


  1. ^ Mathews, Jack (jack_mathews). "Metaforce was the game's code name. It was also the name of the FPS game canceled to make Metroid. The toolset was called RUDE. No name for the engine." 18 March 2018 4:45 p.m. Tweet.
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  7. ^ KIWI TALKZ - #105 - Mike Wikan Interview (Metroid Prime Trilogy, Game Design, Crunch, Booz Allen Hamilton etc.) September 6, 2021. Retrieved September 18, 2021. Starts at 1:27