Great game.
Beat it on easy..
I guess I could play it on Normal/Hard...
But the game was definitely interesting. The use of the mouse made it better than the average rhythm game.
I tried one of levels on Hard in freeplay. It's really difficult. I doubt anyone could do it well without another persons help... or with a lot of practice. Still a good game though.
Also a bug is if you play in Free Play mode, like the last song. Then when you play Story mode it says you have 100% completed it... there is the option under Options to clear the progress in the mode, but still it shouldn't happen.
Maybe add some kind of highscore list too...