The Art style looks a lot like those "Elite Beat Agents" but I don't recognize the level ...
Elite Beat Agents is correct. The burden of turn falls on your lap.
It's a shame it didn't do so well, since I would've loved to have seen a sequel.
I ordered the Osu! Tatakae! Ouendan! games from Japan to get some more of that goodness. I can't read Japanese at all, but the game's still fun and you can sort of guess what's happening since the story style is like it is :D
A shame that those games don't feature the ultra cool dance agents...