Because this is community content, you can find the project and its files on major modding platforms: GameBanana
There is from SEGA or Sonic Team by that exact title. "Sonic Mania" (2017) is the official game, and its expanded re-release is called “Sonic Mania Plus” (2018). The phrases “Super Plus,” “Hyper Edition,” or similar variations typically refer to unofficial fan-made ROM hacks, mods, or fangames —not a legitimate commercial product. Sonic Mania Super Plus Hyper Edition Download