Once at level number 0x15, the copy used in-game, once at 0x16, a duplicate, and once at 0x17. However, it appears 3 times in the level pointer table. This is actually the (used) level Donut Plains 1. This level is also most likely a placeholder as once one looks at the ROM they will see there are over 60 copies of the level with no changes. It is not a property of the level as a whole.
In the copy that was originally discovered, Yoshi could not enter the level. Mario will also receive a 1-up if he either walks to the end of the level, or slides down the side of the first T. Mario will die if he goes down this hole. At the end is an arrow pointing into a small hole. The actual level is a short plain with TEST spelled out in turn blocks in the sky. Due to this, this was one of the first unused levels discovered. Actually, around half of the references are directed to this level. Probably the most famous of the SMW unused levels, this is also one of the few referenced in the pointer table. It’s almost identical to the well known TEST level, although it has garbled background. Actually when the player find a way to get on the Switch, the player can enter this level. This glitches the game, causing the player to be teleported to level 00 and get trapped in an endless Bonus Game. Beating the Secret Exit of Valley of Bowser 3 would cause Mario to walk to this switch palace, except that Valley of Bowser 3 has no secret exit, and there is no path for Mario to walk on. Since it leads to an “empty” level, it is probable that it was scrapped early in development. There is an unused Switch Palace to the left of Valley of Bowser 3.
It also means that most of them don’t have names, and those are listed here by their address in the ROM.
The majority of these are not referenced by the game’s level pointer table, which means that a standard copy of Super Mario World won’t be able to play them, even though their data is present. Unused data Beta levels Īmong the data on the Super Mario World ROM, there are many levels that did not make it into the released game. Notice the Super Leaf and a Super Mario Bros. Some of the unused sprites in the SNES Test Program.