Painkiller took 9 tries, each time about 10-1k away from the cut-off using Jackpot, Bombs, Guitar. I am officially sick of this song. 2/10 would not play again. (In response to Epsilon82: Hardest cakewalk ever.)
Well, I'm glad you got it, but I'm curious if you skipped the drum solo. If you save a full Jackpot activation and use it right before (or during) that last guitar sustain, you'll get a metric ton of points. I know the first time I played it I was extremely tempted to go over to the drum section, but managed to think better of it just in time. That long sustain got me the gold stars (barely) even without Jackpot, and it's crazy to think how many points I left on the table without it.