Secret Ninja Attack

Secret Ninja Attack is Greninja's Final Smash in its playable Super Smash Bros. series appearances.

Upon activating the move, Greninja uses Mat Block, one of its signature moves from the Pokémon franchise. The move involves summoning a tatami on the floor in front of Greninja which he flips up, sending any opponents on it upward. The move then transitions to a cinematic with the trapped opponents in front of a large moon and Greninja using what appears to be Double Team to launch repeated attacks. After the attacks, Greninja launches the opponents downward, causing them to rebound upward off the ground. If their damage is high enough, the opponents are sent past the upper blast line and KO'd.

In Super Smash Bros. Ultimate, Greninja turns into Ash-Greninja for the Final Smash.