Hammer BRO.

Hammer BRO. (yoshi's cousin) helps bowser and bowser JR. take over Princess Peach's kingdom.

Hammer BRO. is a koopa who can throw hammers at you and can smash you with it. He is only playable in Super Mario Strikers, Mario strikers charged, and super Mario sluggers. He is known for his many uses for his hammer. He wears a green helmet, green shoes, and a green shell. He can also wear a blue helmet, a blue shell, and blue shoes.

Hammer BRO's first appearance was in Super Mario BROS. 1985. His latest appearance is in NES Remix 2013.