Released v0.1

I just released version 0.1 of this game. It still doesn't have a name, and it still doesn't have a lot of content. I've added large slimes, screen shake, visible iframes, and controller support. I also added a missle, with a very epic procedural explosion, but it never appears in game (yet). I'm mostly writing this down as a list of things I've done, so I can look back on it later and see what I was working on.