Shukumyo

The Shumkuyo is one of Zeku's special moves in ''Street Fighter V. ''This move changes Zeku's form from young to old and vice versa. The move can be used to freely switch between forms, in contrast to his V-Skill Fukuro and his second V-Trigger, which both need to hit the opponent in order to switch forms.

Description
The move appears the same in both old and young forms. Zeku throws a smoke bomb (or pellet, it's unclear) at his feet, which then explodes and releases a smoke cloud, hiding Zeku from view. The smoke then clears, revealing Zeku in his other form. Zeku then briefly stands still with his hands together in a focused stance before either moving or reverting to his idle stance.

Tactics
The Shumkuyo allows Zeku to switch at will without needing to hit the opponent, unlike his Fukuro and his second V-Trigger. The move is best used when the opponent is knocked down, far away, or when the opponent is otherwise unable to hit Zeku. This is because Zeku is completely vulnerable throughout the duration of the move and a little bit after it is done.