Hammer Bro

Hammer Brothers are Koopas that stand upright and throw hammers at passer-bys. They have been around since Super Mario Bros..

Variations of Hammer Bros.
Boomerang Bros. - Basically, a Hammer Brother that throws boomerangs instead of hammers. Their uniforms are white, instead of black.

Chomp Bros. - As the name implies, these bulky baddies throw Chain Chomps instead of hammers. They are only found in BeanBean Kingdom.

Fire Bros. - Instead of hammers, these fellows spit fireballs. Their uniforms are blood red.

Sledge Bros. - Monstrously sized Hammer Bros. that can cause small, localized earthquakes when they stomp. They are only found in Giant Land.

Tools
Hammer Bros. Hammer, Hammer Bros. Suit

Notable Hammer Bros.

 * Bamma - Paper Mario: The Thousand-Year Door
 * Hamma - Paper Mario: The Thousand-Year Door
 * Flare - Paper Mario: The Thousand-Year Door

Paper Mario Stats
HP: 12, Attack: 5, Defense: 1

Tattle: These are the Hammer Bros. You've seen these punks before, haven't you? Be careful of that hammer! If it hits you, you'll get shrunk in a wink. When the Hammer Bros. get desperate, they'll hurl a ton of hammers, so watch it. These guys have been a pain for ages, so let's give 'em an old-fashioned whopping. As always, they're not to be underestimated.

Boomerang Brother
HP: 7, Attack: 2, Defense: 1

Fire Brother
HP: 7, Attack: 3, Defense: 1

Hammer Brother
HP: 7, Attack: 4, Defense: 1

Koopa Clan

 * Koopa Troopa
 * Paratroopa
 * Dry Bones
 * Lakitu
 * Magikoopa
 * Hammer Bros.
 * Koopatrol
 * Spiny