Don't let the cute look fool you!
First of all, there are two new bosses: Oilman and Timeman. Nothing spectacular, but still kinda cool.
Secondly, Construction Mode! Why use a fan-made level editors for the NES Mega Man games, when you could use an official one with a big makeover!
Third, you can play as the bosses! You have to admit, when you played the original, you wanted to play as the bosses before. I sure did! Each boss has its own unique ability (e.g. Cutman can do wall jumps, Iceman can freeze enemies and walk on them, etc.) Along with playing as the bosses, you can fight a creepy looking Mega Man.
Fourth, Old Style! Remember back in the ay when you played the NES version? It's back, but with remade graphics! All of the music and obstacles have been transferred over to Powered Up. Pretty cool, eh?
Fifth, unlockable stuff! You can unlock Protoman, new versions of Mega Man (sliding, charging, and "Mega", the unarmored Mega Man), and Roll (via Capcom's server). Plus, you can get scenery and enemy packs for Construction Mode through the Normal and Hard levels!
Finally, remember Construction Mode that I mentioned above? Well, it's online! Post your levels, get ranked, and download other levels and rank them!
Altogether, this is one of the greatest Mega Man games in the history of Mega Man! If you love Mega Man, like I said before, then you'll love this game, despite it's cuteness.