Piranhacopter

Piranhacopter (, Leaf Rotor) is 's up special move.

Overview
When used, Piranha Plant spins its leaves and travels upward for a great amount of distance. A direction can be inputted to move Piranha Plant left or right during the ascent. However, this will lower the airtime slightly, and carries a great deal of momentum which can make it hard to control for some players. The leaves themselves deal minor damage and are capable of dragging opponents along with the player.

Once Piranhacopter ends, Piranha Plant will begin descending before entering a helpless animation. If the player lands during the descent prior to becoming helpless, they will suffer 20 frames of landing lag. However, with the helpless animation, this becomes 18, saving some frames. The helpless animation can be triggered early through fast falling during the descent.

There is evidence in the game's code that Piranha Plant's air speed should be reduced to 0.6x its usual value during helplessness after using this move, similarly to many other up specials, but oddly this does not occur.

Origin
This move is a reference to the from Super Mario World. In that game, Jumping Piranha Plants jump out of pipes in an attempt to attack Mario, with their leaves fluttering in the air in a similar fashion to its iteration in Smash.