Mega Man X2/Upgrades

Leg Upgrade (Mid-Air Dash)

 * Stage: Overdrive Ostrich
 * Items needed: Spin Wheel

This upgrade is at the end of the stage before you enter the door to the rocket. Before you drop down to the door do a skip jump across the gap to a ledge that is blocked. You'll need to use the attack, spin wheel, to destroy the blocks blocking your way, inside is a small room with a capsule. Enter the capsule to gain the Leg Upgrade.

Helmet (RADAR)

 * Stage: Crystal Snail
 * Items needed: None

Body Armor (G. Crush)

 * Stage: Morph Moth
 * Items needed: Spin Wheel

X Buster

 * Stage: Wheel Gator
 * Items Needed: Mid-Air Dash