World 5 (Super Mario Galaxy 2)

“This place... It looks like it might be pretty well protected. I betcha we're moving right in on the enemy's home base. Whaddya say we drop in unannounced?”

—Lubba, Super Mario Galaxy 2

Template:Worldbox World 5: Trial of the Galaxies is the fifth world featured in Super Mario Galaxy 2. It is located in a galaxy cluster. It holds seven galaxies, the last of which, Bowser Jr.'s Boom Bunker, features the third and last encounter with Bowser Jr., who now attacks with his Boomsday Machine.