This page contains Lego Batman 2: DC Super Heroes Hints for Nintendo DS called "Secret Room" and has been posted or updated on Aug 28, 2012 by CheatsMaster. Let us know what you think of this Hint by thumbs voting.
On Gothem Theater After You Beat Harley Quinn, You Go Down This Hole. There Is A Set Of Green Drums. You Have To Use Green Lantern For This To Work. After You Get In The Room, You Have To Use Poison Ivy Or Hr Goons To Do The Vines. Then, Use Green Lantern To Change The Gnome. Then The Secret Door Will Open And You Will Unlock The Penguin.
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