This page contains New Super Mario Bros. 2 Hints for 3DS called "Secret world unlock" and has been posted or updated on Mar 30, 2013 by Gruntslay3r364. Let us know what you think of this Hint by thumbs voting.
Secret world unlock
Well, in world 2 when u beat the boss, u will walk off screen for a moment. if you look closley there is a small gap when u walk away. go redo the castle/boss level and to get in the hole, use a small blueshroom. as u walk away u will fall into the hole which leads to a new but VERY hard world. thanks for reading! :3
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