Sonic-mania-game
: Unused text for "Hyper" and sprites for Super Emeralds indicate that Hyper Sonic, Tails, and Knuckles transformations were at one point considered, possibly tied to collecting emeralds in bonus stages. Cut Gameplay & Zones Unused Bosses :
During the development of , several early story drafts and pieces of unused content were conceptualized but eventually cut or modified for the final release. Early Story & Concepts sonic-mania-game
: Tails originally had a unique intro for Chemical Plant Zone where he would dry his fur after being hit by a chemical drop. : Unused text for "Hyper" and sprites for

