Welcome to IGN's New Super Mario Bros. U Walkthrough and Guide! Here is the Secret Exit Guide for Rock Candy Mines-Castle: Roy's Conveyor Castle. (Note that you need to complete the level once and ...

The villains - Larry, Morton, Wendy, Iggy, Roy, Lemmy and Ludwig - date back all the way to Super Mario Bros. 3 and have been a regular thorn in Mario’s side ever since. One other possibility is ...