Bubble Blast Galaxy

The Bubble Blast Galaxy is a galaxy in Super Mario Galaxy. This galaxy is very vertical and flat, being traversed by Bubble Blowing, Sling Stars, Pull Stars, and Pipes. There is a large black hole in the middle of the galaxy, so if Mario fell down, he would be sucked in instantly since there is only one other planet with a gravitational pull.

The Electric Labyrinth
Mario starts out on a planet shaped like a star. On the planet, there are 5 pipes. Mario (or Luigi) has to collect 5 Star Chips in the pipes while Bubble Blowing to create a Launch Star.

On the next planet, Mario has to blow the bubble while avoiding Bullet Bills to get the Star.