Triad Thunder

Triad Thunder (トライアードサンダー) is the weapon that X obtains from Volt Catfish in Mega Man X3. Uncharged, the weapon causes three orbs to surround X, which conduct electricity between them in a triangular pattern, then fire a trio of electric blasts outward. When fully charged, X smashes his fist against the ground, releasing electric sparks along the floor and walls. Any enemies touching the ground during this attack will be destroyed or heavily damaged. This can also be used to destroy some obstacles and open new paths. Crush Crawfish and Bit share a weakness to this weapon. 

Tri-Thunder (Mega Man Xtreme 2)
Tri-Thunder is the weapon that X or Zero obtains from Volt Catfish in Mega Man Xtreme 2.