Chargin' Chucks are large, burly Koopas that wear American football gear, debuting in Super Mario World. They wear white helmets with a blue and orange stripe, blue shoulder pads, red spiked cleats, and black shells, and have chubby, infant-like faces and small, squinting black eyes. In Super Mario 3D World, when their helmets are off, it is revealed that they have two spiky tufts of blue hair.

In Super Mario World, Chargin' Chucks can attack in a variety of ways, including throwing baseballs, kicking footballs and flinging rocks with a shovel. They can also break through Rotating Blocks and Grab Blocks, and will act more aggressively when Mario is riding Yoshi, though Yoshi cannot eat Chargin' Chucks. Many Chargin' Chucks are also able to jump high in the air.

In Super Mario Odyssey, Mario can capture a Chargin' Chuck, but he must first remove its helmet with a jump or hat throw. Once captured, Mario can use a charge attack to plow through enemies and rolling boulders, and cross gaps the width of a ?-block simply by running across. However, unlike in Super Mario World where they are good jumpers, Chargin' Chucks are unable to jump in Super Mario Odyssey.