Battle Ring (Mario & Luigi: Dream Team)

The Battle Ring is an area in Pi'illo Castle that Mario and Luigi can access in Mario & Luigi: Dream Team. The area serves the same purpose as The Gauntlet in Mario & Luigi: Bowser's Inside Story, in that Mario and Luigi face tougher versions of bosses already battled.

Trivia

 * It is possible to have the trophy for an inaccessible boss. To do so, the player must defeat the normal version of the boss (unlocking the Battle Ring version), then defeat the X boss without saving. After the battle results are saved, the player must reset the game and go back to the Battle Ring. The trophy for the boss is viewable, but the boss is not unlocked yet.
 * All giant X Bosses have the highest possible speed in the game.