How SICK is this? I found this while browsing for indie games, and found Dark Shades, some other mini-game...fun stuff.... But then I saw THIS: YouTube - Map Editor For Overgrowth - Wolfire Games This game is basically this: Ninja Rabbit Fighting. However, you can make custom maps to do so in, edit the physics, and change the animations. I think I'll be pre-ordering this...
hammer in the source SDK (steam/library/tools) is a map editor for all source games... but if you dont know what does what you are screwed. this looks like more of a simplified version of the same basic tools