Thought Pixel deserved some compensation, so I went for it as soon as it was available in Europe.
There is a rearranged soundtrack which is good, though the original (available) has a different knack and more of a retro feeling. There's also new higher definition graphics which really don't look all that different on the small CRT TV I have here, but I'm gonna get me a bigger LCD soon and maybe that'll change.
Game's as good as the PC version, using the Wiimote sideways feels very natural, they added more than one savestate (which you can select only at the beginning of a game), plus there are a couple of "???" items in the main menu that will be probably unlocked when you beat the game.
To me, 1000 points well spent.
I also got Contra Rebirth, feels right, but that's another story.