mhmm same here. i rented the game last night and now the only achievements i need are 3 co-op ones and the one for buying every guitar.

the only one i had to work at for a little bit was the "Score Hero" achievement, but i got that right after i figured out my fingering for those chord changes in the 2nd half.

but it's still fun for a rental, i made a good choice not buying it.