Koopa (species) - Super Mario Wiki, the Mario encyclopedia

Koopas are a category of turtle-like creatures that form the Turtle Tribe. There are many different types of Koopas, the most common being Koopa Troopas; they are specifically named for the species

Beach Koopa - Super Mario Wiki, the Mario encyclopedia

Super Koopa (enemy) - Super Mario Wiki, the Mario encyclopedia

Birdo - Marioverse Wiki

Princess Peach, MarioWiki

Bowser - Wikiwand

Kooper - Super Mario Wiki, the Mario encyclopedia

Koopa (species) - Super Mario Wiki, the Mario encyclopedia

Boom Boom from Super Mario

Kammy Koopa, MarioWiki