Shrek Super Slam/Secret Arenas

To unlock each, find a Mega Challenge with a question mark next to it. This works with all except for Trophy Room. To unlock trophy room you must collect every medal and trophy.


 * Dragon's Hall
 * Mine Cart
 * Mongo
 * Bell Tower
 * Romeo Drive
 * Beanstalk
 * Giant's Table
 * Potion Factory
 * Trophy Room