Believe it or not, this is the only Mega Man game I have ever completed. I really need to play more of this series eventually.

But yeah, this game is quite good. Visuals are fairly detailed for PSP standards, controls feel pretty good, weapons are varied and the levels and bosses are well-designed, fun, and provide a fair challenge. Basically everything you'd look for in a game like this is here.

Also, you can find a secret item that lets Mega Man do a Hadoken, and that's pretty darn cool.