Stalking Piranha Plant

Stalking Piranha Plants are sub-species of Piranha Plants that appear in New Super Mario Bros. Wii. They appear in World 5, Toxic Forest, as common enemies. When Mario isn't around, they walk around on two legs, like Ptooies. When Mario approaches, however, they stretch out their necks to block Mario's path and to attack him. The Piranha Plants in Mario Party 3 also have legs, which might have been the inspiration for this.