Rasetsusen is an ability used by Zero in Mega Man X8. Zero learns this ability after Dark Mantis' defeat. He jumps in the air and spins around, falling to the ground after a short while. He can change the direction of his fall, or speed it up by angling the control stick. Depending on the length of his current weapon, the range of the ability can be greatly altered. By using the K Knuckle, instead of spinning his body, he does a pirouetting kick that is also able to change direction. This ability is dark-element, and is effective against Gravity Antonion and Copy Sigma.