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, abbr. for Triad Thunder (トライアードサンダー) is a different version of Triad Thunder that X or Zero obtains from Volt Catfish in Mega Man Xtreme 2. When used by X, it shoots electric arcs in three directions, and when charged it surrounds him with electricity which is shot in random directions. When used by Zero, he punches the ground, damaging all grounded enemies and generating two electric arcs which sweep across the screen. 