Bowser Jr.'s Robot Reactor



Bowser Jr.'s Robot Reactor is Bowser Jr.'s galaxy in the game Super Mario Galaxy. In it, Mario fights Megaleg to earn Junior's Grand Star.

Tech Planet
This is where Megaleg is found and battled. It is fairly small and orange, with many technology symbols all over it as if it were some kind of mothership styled planet. It also has small rectangular areas on it that are transparent and seem to have something inside them, possibly computer based.

New Mix Planet
This is a very small planet. Mario simplily has to get a Bullet Bill to break open a piece of machinery to reveal a Boost Star, and then use that Boost Star to reach the Tech Planet.