Mecha Samus

Mecha Samus was a concept in the design document for Metroid 1.5 as a co-op feature of the game.

Co-op Multiplayer Component:
"At a certain point of this adventure, Samus could have the opportunity to create an Android double of herself. In single player she can give it simple commands and it will fight along side her. Perhaps we can even have a side quest on the ship where you have to retrieve the necessary components in order to create Mecha-Samus. There has been something I have been thinking about for a while…What if we had the ability for any other player to control the co-op AI, at anytime? For example I start playing a game, and I have my Mecha double with me, Zaf comes over, and picks up the second controller, the screen would split in real time (see War of the monsters) and now Zaf can control the Mecha double for as long as he wishes. As soon as he puts the controller down and there is more than 10 seconds of no controller input, the screen would go back to full screen mode in real time. Sounds difficult to pull off, but maybe not."