Shütshimi is a retro-style shoot 'em up where you are a gold fish with bad memory problems and big beefy arms. With those beefy arms you will shoot up other fish because who cares. You're a fish with beefy arms and guns, do you really need to know anything else?
Shütshimi is up on Steam Greenlight for voting, and will eventually be released for PC and Xbox Live Indie Games in the near future. There's a demo you can check out from the official site too if you feel so inclined.