No lock-on cartridges required for this one In Sonic Mania, players can run through some retro-style levels as either Sonic, Tails or Knuckles.
But a special hidden mode adds a perfect twist on the gameplay by calling back to a classic Sonic goof.
To unlock & Knuckles Mode, players need to collect medals from the bonus stages scattered throughout the main levels.
Sonic Mania does the same thing with its own & Knuckles Mode, where Knuckles follows the playable character around a la Tails. It doesn’t matter who you’re playing as for this to work — so you can even make Sonic Mania into Knuckles & Knuckles, if you want.