I've played Mega Man 2 many times in my life. It and Mega Man 3 are total comfort food games. It's weird, because I have big time love for certain entries in the series - X and X4 included - and yet have managed to totally skip others altogether. I'm a pretty big fan, just not a rabid one.
But Mega Man 2 is like riding a bike. I was actually impressed with my muscle memory as I breezed through each level. My memory says the last time I played this game was in 2008 on the old Gamecube anthology (that had botched controls). If I'm wrong, it wasn't much later than that. But man, I totally remembered each level easily - at least until I got up to the Wiley stages.
Digital Eclipse's work on this collection is fantastic, and they should be paid to anthologize as many beloved franchises as possible. Everything felt spot-on from the original NES release and all of the emulation options were much appreciated. I'll be honest, I totally used the rewind feature during the old disappearing blocks sequences because truthfully, I've subjected myself to that torture enough in the past that I felt like I had earned the privilege to give myself the mulligan.
But hey, guess what? Mega Man 2 is still completely awesome thirty years later. The music is still phenomenal. I've had various tunes from the game stuck in my head all weekend. Oh, and I've always loved that opening - the epic music, the fast-panning camera going up the building, and Mega Man himself with his helmet off, hair blowing in the wind. This game is still an absolute classic.