Army Hammer Bro

The Army Hammer Bro. is a major character and miniboss fought before the final showdown with Bowser in Super Princess Peach. The Army Hammer Bro leads the percent of the Koopa Troop made up of the Hammer Bros., although (according to the Glossary) it is unknown if he's actually any stronger at all.

Army Hammer Bro., who looks like a horned Hammer Bro clad in black armor, is first seen in the game's opening, where Bowser sends him out to cause chaos in the Mushroom Kingdom. Taking several of his Hammer Bros. along, as well as a rather vital Goomba, the Army Hammer Bro. set off to fulfill his orders. In the end, he and his troops managed to do just what they were told to: not only did they kidnap several Toads, they also managed to take both Mario and Luigi themselves off to Bowser's Villa.

The Army Hammer Bro was not seen until much later in the game. (The final stage, to be exact). As Princess Peach walked up to Bowser, she saw him in front of his king. He sarcastically ranted about Peach's courage, angering the princess. Then Bowser uses the Vibe Scepter to power him up with Rage, and he battles Peach. Although he can summon his Hammer Bro. underlings to assist him, all that Peach must do is whack him with Perry five times. Then, she will move on to fighting King Bowser himself.

Trivia

 * He is noticeably the only Hammer Bro. with horns on his helmet.