Megaman X2 (USA) ROM

The sequel to Mega Man X follows directly after the first game, with X fighting against the Mavericks that remain even after Sigma's defeat. However, he learns that three Mavericks called the X-Hunters have Zero's parts, and thus he battles them to get Zero back. The game finished with a final battle against the newly resurrected Sigma, who shows his true form of a virus.
This game added the Ride Chaser and the Air Dash to X's arsenal, both of which remained in the rest of the series.
 
It's not as good as the first X, but still worth a try.

Megaman X2 (USA) is an SNES game that was developed by Capcom. Megaman X must defeat Sigma and his brothers.

This game is the sequel to the highly acclaimed. Join X as he rises against a new threat: the "X-Hunters", a group of Mavericks who want to destroy X and have stolen Zero body parts (remeber he died in the first game of the series).
Once again, prepare to fight eight bosses and collect hearts, tanks and a new set of armor. That's pretty  much all that's new, so the game feels a lot like an expansion of the first one.
Apart from that it's a pretty solid title. Pick it up for some high quality platforming action that only Megaman games can provide you!