Lava Piranha is a Piranha Plant with the ability to survive in lava. This Piranha Plant is fought in a volcano in the first Paper Mario game and is the only appearance it ever makes in the series. Its attacks are fire-based obviously. But it is suspectable to water and ice attacks though. It is red with white spots with red inside.
Under service of Bowser, Lava Piranha guards the card that contains the Star Spirit Misstar in Mt. Lavalava. He is only mentioned when a Piranha Plant spots Mario before entering the volcano and before the room with Lava Piranha, mentioning to report to its boss. At the bottom of inside the volcano, Lava Piranha emerges from a small lava pool. Talking with bad grammar, he spouts insults before engaging the plumber. Mario defeated him, only for Lava Piranha to reemerged from the lava on fire, but was defeated again, and was apparently killed, sinking back into the lava before releasing the card containing Misstar.
In the credits parade, when the Lavalava Island goes by the screen, Raphael Raven and Lava Piranha alternately poke their heads out from behind the mountain.
In the first phase, Lava Piranha has 40 HP, 0 DEF, and 5 ATK. He shoots fireballs at Mario, and his Lava Buds shoot Petit Piranhas. Killing the Lava Buds makes the battle easier, and they each have 8 HP.
In the second phase, Lava Piranha has the same amount of HP and defense, but his attack increases to 7 and he breathes fire. He is on fire, so he cannot be jumped on without the Ice Power badge. This phase is easier than the first if Sushie is Ultra Rank and can use Tidal Wave; ice or water attacks will stun Lava Piranha and his Lava Buds (who cannot be killed in this phase) for two full turns. It is possible to beat this form without taking any damage.
In the "Super Mario Mash-Up" pack for Minecraft, Lava Piranha replaces the Wither.
Because Lava Piranha speaks in third person, there may be more than one of Lava Piranhas, although this is never proved.