Sonic Mania/Glitches

This article contains a list of glitches from Sonic Mania. Unless otherwise noted, all glitch names are conjectural. Many of them have not been confirmed by Sega.

List of glitches
If the player hits a spring that pushes them while they remain in contact with the floor, they can push down to enter a Spin Dash and then hold the direction opposite of the one they are moving in to play the current character's pushing animation, even though they aren't pushing anything.
 * Spring Push Animation Glitch:

Under certain circumstances after getting a 1-Up the "end level" music will play instead of the current level's theme. This causes the level's music to cease until it is changed (ie: a boss fight).
 * No-Music Glitch:

For unknown circumstances in a Special Stage, the UFO can abruptly turn around and fly towards the player, immediately rewarding them the Chaos Emerald.
 * Pity Emerald:

If Sonic attempts to turn into Super Sonic, due to unknown circumstances, he may cease mid-transformation and stay stuck in his regular form. However, his quills and eyes will display similarities to Super Sonic, and other animations may change, such as the crouch. Sonic can still properly transform into Super Sonic after this. The theme music for Super Sonic will play when Sonic is in this state.
 * Super Sonic Blue:

After defeating Metal Sonic in Stardust Speedway Zone, his collision with the spiked wall may force him to remain in mid-air.
 * "You're probably wondering how I ended up in this situation":

Similarly to Sonic the Hedgehog 2, if the player uses a Spin Dash or Drop Dash while riding the Tornado, it is possible to fall off and lose a life.
 * Edge of Glory?:

When playing as Sonic and Tails in the final boss fight, if Tails is grabbed by both hands at the same time, the player will be stuck in the fight and forced to either restart or get a Time Over.
 * Tails just chillin ' :

It is possible to skip the Heavy Shinobi's boss battle with Sonic and Tails, by letting him freeze the Tails near the right-hand side of the stage to allow Sonic to bounce off of him. This will the player give access to the Capsule. As a side effect, the boss will continue fighting the player during the post-boss cutscene which can cause a softlock where the Phantom Ruby floats away.
 * "They don't teach this in Ninja training":

In Flying Battery Act 2 as Knuckles, the player should go toward the end of the act where they run with anti-gravity spheres that push them upside down. From there, they should jump off while standing up and begin gliding. After some period of time, the player will perform somewhat of a level warp. The screen will scroll left, they will see inside assets with an outside background, and the ground will disappear. Afterwards, the player will be stuck at the far left of the stage in an invisible box.
 * Gliding through the dark sky: