I've noticed there's no multiplayer in Blitz. Meaning no co-op or competitive action in songs.

That would've been a cool feature for Harmonix to come up with, instead, they let us "challenge our friends" into a "Score War", which I think is just crap and not good enough.

I'm sure there must've been some potential for multiplayer in Blitz...and I'm disappointed to find nothing of it in this game.