I assume the new characters will need to be saved before they become playable.
☆ NintendObs Weekly – Monday, May 14, 2018 – Sunday, May 20, 2018.
Source: Famitsu.
At NintendObserver, the comments are on Discord.
Click on Community to learn more. 🙂
…
…Wanna play? Buy a Switch.
And if you’ve already got yours, click on Sonic Mania for everything you need to know about the game. 😀