*Megahammer is one of Bowser Jr.'s robots appearing in Super Mario Galaxy 2. This robot can be found in Bowser Jr.'s Fearsome Fleet, a location at the end of World 3. Bowser Jr.'s pod grows a mask and attaches itself to a robot body. This battle requires use of Yoshi. There are Yoshi eggs spawns around the ring. Megahammer releases Bullet Bills and Banzai Bills.