Petey Piranha is one of the Unlockable Characters for Super Smash Bros. Ragnarok. A mysterious Piranha Plant that is unique among most others. Petey is somewhat more intelligent than his brethren able to perform a more diverse array of attacks to defend himself.
A new feature in Super Smash Bros. Ragnarok, pairing has a secret ability in which if both characters perform Final Smashes together. Every Character has a partner that gives both Final Smashes a 5% Damage Boost when performing a Paired Smash.