For anyone that's curious, I know for a fact that levels 5, 11, 15, 16, 17, 20, 22, 23, 26, 29, 31, 35, 37, 38, and 39 can all be done under par. Most of it is simply timing, and unfortunately you can't guarantee that it will work every time, but all of those are possible.
Game's fun, but badges don't work well for it. Also, am I the only one that has trouble with saving? Whenever I leave the page all my campaign completion is erased...
Regular game is decent, if simple and luck-based. Challenge mode is idiotic. Without the option to customize a deck in any way the game will always be purely luck based with next to no skill involved, but the fact is that, with the exception of the early challenges, almost every round is decided before you've even seen the cards.
As far as free online versions of guitar hero/rock band go, this ones not bad. Timing is a little off for certain songs (as in video isn't quite synced to audio) and for some reason the creator chose a bad version of mortal kombat, but overall good quality.
Decent enough game, although the limit on the income cards should be a little higher at least. Having to restart a hard mode game multiple times just until you get lucky with those cards is stupid and easily remedied by increasing it to something like 10 each.
Kind of like a bad version of guitar hero I guess... As long as they're going to throw in the number keys, they should make the entire thing use 1-4 instead, that would mean you were playing on a straight line of keys rather than a pyramid of keys. I suspect it's just a matter of it being that a flash game that it lags key strokes if you hit a couple keys at once (by accident) until you stop playing so I can't complain about that. Otherwise, I just think they should have chosen easier songs so they didn't have to only code for every fifth note.
Pretty fun, but the scoring system's pretty bad. There should be a serious time multiplier, then it wouldn't just be getting 2-3 mil right at the start with almost nothing once you get hit.