List of Mario & Luigi: Bowser's Inside Story pre-release and unused content

These are beta elements from Mario & Luigi: Bowser's Inside Story.

Early builds

 * In the E3 2009 trailer, after Mario saves Peach from flames at the start of the game, Bowser said "How dare you!", but in the final release he says "Crud!"
 * Early screenshots depict Treevils being battled at Plack Beach, instead of Dimble Woods as in the final game. The area they were battled was at the site of Sea Pipe Statue.

Unused data

 * There are various unused sound files. These include Yoshi's voice clips from Yoshi's Story, and some of the music from Mario & Luigi: Partners in Time. The PiT music won't play correctly, because it was replaced with BIS equivalent and the ones without equivalent have been replaced with "Tutorial" and "Tension" sequences. However, Yoshi voices will play correctly since they're wave files and weren't replaced or removed from the ROM.
 * There is an unused item that looks similar to a Life Shroom but is named Dummy . If used, Mario (or Luigi) will throw it in the air (while inside Bowser) and it will explode, healing 60 HP back to Bowser. It was most likely scrapped because of the fact only the Sea Pipe Statue and Durmite can damage Bowser from inside.
 * All the enemies that the Mario Bros. can't fight still have an attack pattern for them (except the Dark Mechawfuls, as they were unfinished, and the final boss).