I don't have much to say about Megaman X2, but I think it's about on par with it's predecessor. Though it is worse in some areas, it builds upon the first in others. Namely movement and weapon wise. The introduction of the air-dash, though you're not guaranteed to get it bolsters replayability quite a bit and makes exploration a lot easier to stomach.

Although they're a lot... wackier in this one, I found myself cycling through X2's roster of weapons much more than X1. They should be a lot less practical, but they're oddly useful. However, I think the levels take a bit of a seat back in this one. They feel more... empty for lack of a better term, and for the worse. Bosses are pretty much on par with the original, if not a bit samey.

That pretty much sums up my thoughts on X2. I really don't have much to say about it as a sequel, most praise I give it also applies to X1. If you're looking for more X1, then this is probably your place to go. Another solid installment in the series.