Don't have terribly much to say just has the same good controls as the SNES ones (though I do admittedly think those feel a bit better due to what I assume to be the smaller sprites) with excellent level design and aesthetics. The thing that really elevates this one though is Zero as a playable character, the addition of a whole new playstyle adds so much replay value to an already replayable series and I think he's even funner to play as than X. Boss fights are very hit or miss here, this game has some very good ones but they pretty much all of the 8 stage ones get ruined by special weapons (Web Spider is the only exception) and the last two are cancer.
Excellent platformer, at least the 2nd best the X series has to offer.