Hamsturr has a mouse/dog-like appearance, with some mechanical qualities. He wields a rounded flail and carries a star-patterned shield. His hands are detached from his body and he has no arms; similar to Iron Mam or Jukid. He has a small, round, red nose, and his face is always in a scowl.
Hamsturr's only attack is to swing his flail at the Kirbys, which is preceded by him flashing yellow.
How to Defeat
To defeat Hamsturr, the Kirbys will first need to destroy his shield by flinging themselves at it until it breaks. If the Kirbys attempt to pummel it, they will get shaken off. Once the shield is gone, all they need to do is pummel him like a normal enemy. However, they should be careful when he starts to flash yellow, as it means he will soon swing his weapon.
- Hamsturr, Big Birdee, Freezy Rex, and Shadowbite are the only Kirby Mass Attack mid-bosses that don't appear in Survival Rush.
- Hamsturr appears in Kirby: Triple Deluxe as a keychain.