Venture 200 years into the future to the vividly colorful, high-tech city of Twin Ships. Dancing has been prohibited and anyone caught will be immediately arrested and banished from the city. It's up to you to convince the local dictator Ducker to lift his restriction on dancing. But it's going to take the performance of a lifetime to show him how great a world it can be when everyone is free to dance. Team up with the master - Dr. Dance, and be a member of the Ultra-hip dance unit Unison!
UNiSON (title spelled with all caps except the "i") is a dancing game where you control one of three girls dancing with both of the PlayStation 2 analog sticks.

I love the cute anime character design, and the soundtrack is catchy (although so far I've only heard their version of the Village People's "Y.M.C.A." and their superclean edit of Nelly's "Country Grammar"). However, this game is way too hard for a casual gamer such as myself; it's even harder than Bust a Groove cry.gif .

Here's a gameplay video (not by me): http://www.youtube.com/watch?v=_lasEGj_qqA