I've seen quite a few mash-up/ texture packs lately, but not a Metroid Mash-Up. I think a Metroid Mash-Up would be wonderful, reason is is because of the Halo Mash-Up, seriously! I have been playing quite a bit of Metroid lately, like Super Metroid, Metroid; Other M, Metroid Prime 2; Echoes, etc. I honestly think a Metroid Mash-Up would satisfy me for Minecraft on the xbox, mainly because i am making a world that is based off of Metroid in the game.
Metroid Mash-Ups