Summary: I'm a fan of Smash Bros., but I like this game better than the Melee or Brawl. The customizable robots with different moves and abilities based on the parts you use make it enjoyable to find out what suits your play style. It works well with controllers, imo, and has re-mappable keys if you need them. The story can seem a little drawn out at times, but looking for all the hidden things on the level can be fun.
Summary: It's really just quite boring to be honest. I can see why it'd be fun if it allowed you to play with friends online, but unfortunately there is no online mode. The adventure mode just... doesn't work for a game like this.
Summary: A well polished platformer with lots of emphasis on exploration and customization. Multiplayer rings of Smash Bros. and the only real mark against the game is that you need people physically present for the multiplayer.