Summary: I purchased this thinking it was going to be like Super Smash Brothers. It is not. The way to kill your enemies is kind of dumb and takes a lot of effort to build-up a power and then is easy to miss with... making it so that not every small hit counts (unlike super-smash brothers where every hit brings you closer to death)... therefore it is less about tactics and winning through domination and more about single-hit timing/setup and winning through dumb-luck.
Summary: I bought this on sale, and to be honest I don't think it was worth it. If you like the characters then maybe, but the feeling is not fluid like Super Smash Bros, it rather feels quite rigid - attacks don't flow from one to another, you just kind of switch between them. And that just makes it not feel very fun. Not recommended.