|First Game:Super Mario Sunshine|
Petey Piranha is one of the first bosses in Super Mario Sunshine. Atop the windmill of Bianco Hills is Petey, who is responsible for the huge mess plaguing Bianco Village. When the player reaches the top, Petey will collapse the roof of the windmill, plunging Mario and Petey in, initiating the Boss battle. To defeat him, Mario must fill his belly with water using FLUDD then ground pound his belly, and repeat the process 2 more times. He also appears later in the game as another boss, but this time he can fly. When he's flying he can bomb sludge. Mario can then spray him while Petey hovers over the village.
After his appearance in Super Mario Sunshine, Petey went on to play many roles in the Mario series, such as a boss in Mario Pinball Land, Mario & Luigi: Partners in Time, Super Princess Peach, and New Super Mario Bros. He has also played a role in the game Mario Kart: Double Dash!!, and Mario Strikers Charged as a playable character. Along with that, he's appeared in Mario Golf: Toadstool Tour, Mario Superstar Baseball, Mario Power Tennis, and appears as a boss in Super Smash Bros. Brawl.
Super Smash Bros. Brawl
In the Wii video game Super Smash Bros. Brawl, Petey Piranha makes an appearance as the first boss of the Subspace Emissary. In the game, he'll trap both Princess Peach and Zelda into cages, then will attempt to take on Kirby. Kirby will then be required to save one of the princesses, with the other one ultimately being turned into a trophy afterwards by Wario.
You're also able to get his trophy, and it's suspected that you can do so by tossing a Trophy Stand at it when it's feeble.
Super Mario Galaxy
|Major villains||Donkey Kong | Bowser | Foreman Spike | Wart | Koopalings (Ludwig von Koopa | Lemmy Koopa | Roy Koopa | Iggy Koopa | Wendy O. Koopa | Morton Koopa Jr. | Larry Koopa) | Tatanga | Virus | Wario | Kamek | Baby Bowser | Smithy | Big Bob-omb | Whomp King | Waluigi | King Boo | Shadow Mario | Petey Piranha | Bowser Jr. | Cackletta | Fawful | Antasma | Sir Grodus | Lord Crump | Shadow Queen | Princess Shroob | Count Bleck | Dimentio | Pom Pom | Boom Boom | Bowser Soul | Topper | Hariet | Rango | Spewart | Madame Broode|
|Minor villains||Blooper | Bob-omb | Boo | Bullet Bill | Buzzy Beetle | Chain Chomp | Cheep Cheep | Dry Bones | Goomba | Hammer Bros. | Koopa Paratroopa | Koopa Troopa | Lakitu | Magikoopa | Monty Mole | Ninji | Piranha Plant | Pokey | Shroob | Shy Guy | Snifit | Spiny | Thwomp | Whomp | Wiggler|
|Main characters||Mario • Luigi • Princess Peach • Toad • Yoshi • Paper Mario|
|Supporting characters||Dr. Mario • Princess Daisy • Rosalina • Wanda • Donkey Kong • Diddy Kong • Pauline • Professor E. Gadd • Toadette • Toadsworth • Captain Toad • Birdo • Nabbit • Cappy|
|Enemies||Bowser • Bowser Jr. • Koopalings (Larry Koopa / Morton Koopa Jr. / Lemmy Koopa / Wendy O. Koopa / Iggy Koopa / Roy Koopa / Ludwig von Koopa) • Wario • Waluigi • Fawful • Kammy Koopa • Dimentio • Antasma • Kamek • King Boo • Petey Piranha • Tatanga • Wart • Foreman Spike|