Koopatrol

Koopatrol appeared in 2000 video game called Paper Mario. Koopatrols (named Armored Koopas in Mario Pinball Land) are elite soldiers of the Koopa Troop that made their debut in Paper Mario, and have appeared in two of its sequels, Paper Mario: The Thousand-Year Door and Super Paper Mario. Their name is a portmanteau of "Koopa" and "Patrol". These warriors are the high-ranking guards of Bowser's Castle, and most Koopa Troopas dream of becoming Koopatrols. They appear in physique similar to Koopa Troopas, but they wear intimidating spiky armor, including spiked helmets which protect them from being jumped on. However, they'll flip over (or retreat into its shell in Super Paper Mario) like normal Koopas if a badge or Pixl that allows jumping on spiked enemies is used on them.

They are one of the few original Paper Mario series characters to reappear in other Mario games, along with Whacka, Goomboss, and the Star Spirits.