The Mightiest Bros.

The Mightiest Bros. is a level in Bowser's Castle in the Bowser Jr.'s Journey mode of Mario & Luigi: Bowser's Inside Story + Bowser Jr.'s Journey.

Overview
The level consists of mostly all four types of Hammer Bros. and Buzzy Beetles. The first battle starts off with three Buzzy Beetles at the front, three Ice Bros and a Malatone-infected Hammer Bro at the back, and an Ice Bro first officer and captain. The second battle has four Buzzy Beetles, two Malatone-infected Hammer Bros, and a Fire Bro first officer and captain. The third battle has two Buzzy Beetles, four Ice Bros, a Malatone-infected Hammer Bro, and a Boomerang Bro first officer and captain. The fourth and final battle has three Buzzy Beetles, and a Boomerang Bro first officer and captain, although the captain is infected with Malatone Formula:X.