Ankoopa (known as Turtle) is a fat Koopa Troopa found in Mario & Luigi: Superstar Saga, they can be knocked over by Mario's Firebrand and having Luigi run into them. In the remake, they are replaced by Big Koopa Troopas.
They appear in caves and recite the same line. They block paths in different paths of the Beanbean Kingdom. After Mario and Luigi master the Fire Tickle, they can knock down Ankoopas. After Mario and Luigi knock down the Ankoopa, the Ankoopa wille express shock and move out of their way.
Ankoopa's name is a combination of "anchor" and "Koopa". An anchor is a heavy object attached to a vessel, relating to Ankoopa as being heavy to move.