: The game files contain sprite sets from mobile ports of Sonic 1 , 2 , and a failed Sonic 3 port, which were used as testing tools during development.
: Players can still access a hidden Level Select and Debug Mode by using specific button combinations on the title screen or within the "No Save" menu. sonic-mania-game
For a deep dive into these technical leftovers, you can check community-driven archives like The Cutting Room Floor or Sonic Retro . : The game files contain sprite sets from
contains several unused assets, including bouncing newspaper stacks and printing machines labeled "Sega SP500" as a potential nod to the SG-1000. and a failed Sonic 3 port