Chuckorok

Chuckoroks are a species of round, rock-like monsters seen only in Mario & Luigi: Superstar Saga.

Mario and Luigi encounter Chuckoroks on their search for the Beanstar Pieces, more specifically on their return to Chucklehuck Woods. Here, the Mario Bros. come to a small area inhabited solely by the Winkles and are eventually forced to enter Winkle Colosseum in order to receive the Beanstar piece. Inside the Colosseum, the brothers play a Chuckola Bounce minigame which finally pits them against the Chuckoroks, who move around in a circular motion and spit Chuckola Rocks at Mario and Luigi. Although these rocks can stun the Mario Bros. on contact, if the pair manages to make the Chuckola Rocks hit their Chuckola Board, they turn blue and go against their firers. As such, if the rocks hit a Chuckorok, they would knock the beast away and reward Mario and Luigi with a point. If the brothers catch a Barrier Mushroom, getting hit or manually firing their more-direct barrier at a Chuckorok would also make the creature explode. Although destroying some Chuckoroks, smaller ones would appear to replace them, making them harder to hit.

Chuckola Rock
A Chuckola Rock is a rock that a Chuckorok spits in the game Mario & Luigi: Superstar Saga. It only appears in the Chuckola Bounce minigame in the Winkle Colosseum.

Mario and Luigi, both controling a Chuckola Board, must make the rock hit the board so it bounces back (making the rock turn blue) and hits a Chuckorok. If a Chuckola Rock hits one of the brothers, they will both be stunned for a few seconds.

Trivia

 * The Chuckoroks seem to be based off the enemies Octoroks from The Legend of Zelda series, both shoot rocks and have similar names. Also, the way to damage Chuckoroks in Superstar Saga is also similar to the way Link defeats Octoroks in The Legend of Zelda: Ocarina of Time, by reflecting the projectile back to the Octorok.