Hyouretsuzan

"Down + S.M. button while jumping. A dive attack. Effective against surface enemies."

- In-game text

Hyouretsuzan (氷烈斬), also known as "Ice Fury Slash or Violent Ice Slash", is the special technique that Zero learns after defeating Frost Walrus in Mega Man X4. 

Similar Techniques

 * Drill Crush from Mega Man Xtreme 2
 * Quake Blazer from Mega Man X5
 * Rakukoujin from Mega Man X6
 * Enkoujin from Mega Man X8

Counterpart to this Technique

 * Frost Tower