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
contains several unused assets, including bouncing newspaper stacks and printing machines labeled "Sega SP500" as a potential nod to the SG-1000. sonic-mania-game
: The game’s original working title was Sonic Discovery . Graphics for an early title screen with this name remain hidden within the game’s data. During the development of , several early story
: Tails originally had a unique intro for Chemical Plant Zone where he would dry his fur after being hit by a chemical drop. During the development of