Mega Man X2 Secrets:

Shoryuken Dragon Punch:

First, go to the third X-Hunter Level. When you get to the second lift device (the one that changes directions when you jump on it), ride/maneuver it all the way to the top of the corridor, then to the right past the bats, and climb the upper ladder. If that fails, and you get to the ladder but can’t reach it, go back a little and lure a bat over, then freeze it with the crystal hunter, using it as a climbing block to the ladder. Proceed past all the spikes to the vertical corridor leading down. Slide down the left wall until you enter the hidden area. If you have full life and sub-tanks, the capsule with the dragon punch will be there. See pictures below for extra help.

To activate the dragon Punch, you must have full health. Press forward, down, down forward, then fire.