List of Super Mario World 2: Yoshi's Island pre-release and unused content

This article pertains to the beta elements from Super Mario World 2: Yoshi's Island.

Early iteration
Nintendo marketing department initially pressured Shigeru Miyamoto to have the game use prerendered 3D sprites similar to Donkey Kong Country. The 3D models of Baby Mario and Yoshi used in the introduction might be leftovers of this period of development.

Unused data
This game code include sprites for what appears to be several forms that didn't make the final cut: Among them, a mushroom, a tree, and a plane (which was likely replaced by the Yoshi Helicopter).

Several sprites from Super Mario All-Stars are present in the final release's code. These include Tweeters, a Super Mario All-Stars Shy Guy and Bob-ombs using the wrong palette. There is also a frowning, rock-like block present in the game's coding, and, perhaps even more oddly, a hulking, barrel-throwing, tie-clad Grinder that seems to deliberately resemble Donkey Kong. There is also a Biting Bullet Bill that is fully functional but is unused. Finally, there is a Yoshi Egg frame never seen elsewhere.