MegaDragonBowser

MegaDragonBowser is the end boss of the Lava Pits in Mario + Rabbids Kingdom Battle, and the final boss in the game. As his name suggests, he is Bowser consumed by the Megabug.

MegaDragonBowser has a machine gun that destroys Giant Brick Blocks and inflicts the Burn status. The first phase involves Bowser taking out one character at a time, luring players out of cover. The second phase has Bowser fly up and over the battlefield, forcing Mario and co. to take out the Smashers instead. He returns to the ground for the third phase, and can deploy shields and do a shell toss when attacked. When defeated, the Megabug separates from Bowser and is promptly defeated.