That Philip Glass song really freaking entranced me...

Hah, before looking at the achievement list, I just assumed taking a song to 1000% in Free Mode would give me 10 points or so. 100 minutes later I thought to verify that...Oh well. I spent about 2 hours on that song, and don't regret a second of it.

I have gone out of my way to avoid this game, because it gives to charity.

...I spent four hours in freemode playing that Damn orbital song, then realised I had to go to work.