I grew up on Mega Man. Other kids grew up on Mario and Sonic, but me, I was a Mega Man kid. I started with 2, played 3, 4, 5, 6, and 8. Then went back and played 1, all on their original consoles.
Sadly I had lost my old copies of these games when I moved one year. A few years ago I was able to get a Gamecube, and saw this and was hooked.
Mega Man Anniversary collection combines Mega Man 1-8 in their original format, along with an added Save Feature (love this, screw you password system!). The controls are just like they were before, and the games are just as they were before. If you enjoyed Mega Man when you were a kid and wish you could still play them, I would suggest getting this compilation. It also includes 2 fighting games that were not released in the US, both of which are interesting (you play as a Mega Man character and fight other ones in a 2D fighting game A LA Street Fighter)