During the game's development, two beta builds were shown off to the public. The first was aired on an episode of the kids' game show Nick Arcade; the other was shown off at a New York toy show and was actually stolen from the event. The ROMs for both the Nick Arcade and Simon Wai prototypes (the latter being named after the person who discovered the ROM image) are available online and feature tons of unused content, including the elusive Hidden Palace Zone.