Super Mario World 2: Yoshi's Island/Bosses/Naval Piranha

Naval Piranha is a fictional magically empowered Piranha Plant who first appeared in Super Mario World 2: Yoshi's Island. He has many spiky vines growing from him.

Attacks and Appearances
Naval Piranha has three attacks, the first of which is a ramming attack. In the second attack, Naval shoots Nipper spores out of his mouth which become Nippers if they touch the ground to make Yoshi's fight more difficult. For Naval's last attack, he sends his vines to attack Yoshi.

A very easy way to beat him is to have an egg, carefully aim at the piranha plant (which becomes Naval Pirahna), and destroy it. Kamek will appear, scream "OH MY!!!!!!!!!!!" and fly away disappointed. You then get the key.