Digga-Leg

Digga-Leg is a robotic boss appearing in the game Super Mario Galaxy 2. He is fought in the Spin-Dig Galaxy in the mission "Digga-Leg's Planet".

Apeearance
It resembles a smaller Megaleg with its weak spot being on its underside, containing a Power Star. However, it only has two legs and its eyes emanate a red glow.

Strategy
The only way to defeat it is for Mario to drill through the planet from the opposite position of Digga-Leg and strike its underside. Digga-Leg attacks mainly by stomping around the planetoid. It will occasionally summon yellow drill-creatures. You can defeat the yellow drill-creatures while they are still drilling in the ground by drilling. When angered, it will jump high into the air and come plummeting down, damaging Mario if he was in the way. After being hit three times with the drill, the boss succumbs, explodes, and grants Mario the level's Power Star.