Cheat Mode...
	Debug mode...
	Level Codes...
	Mania Mode: Pinball Bonus Stag...

To use cheats such as alternate modes, And Knuckles and Debug, you must go into Mania Mode and hover over the 'No Save' icon on the right. Next, press Triangle (or Y on Xbox, or X on Switch) to activate these options. Here is how you use each mode.

And Knuckles will add Knuckles as a second character, even to Knuckles!

Debug is activated by pressing Triangle (or Y on Xbox, or X on Switch), then the jump buttons to place and rotate through options.

Mania's move is a Drop Dash (hold jump in the air), Sonic CD's by holding Up then jump, and Sonic 3 and K Insta-Shield by pressing jump in the air.

Finally, there's Level Select, which interestingly works in a variety of ways and differs from platform-to-platform.

Sonic Mania PS4 Level Select: Select the No Save option on the far right of Mania Mode with Debug Mode enabled, and press Options, Triangle and Square.

Sonic Mania Switch Level Select: On the title screen (back out of the main menu to reach it) press Y + B buttons together.

Sonic Mania Xbox One Level Select: Select the No Save option on the far right of Mania Mode with Debug Mode enabled, and press the Menu button, Y and X together.

Sonic Mania PC Level Select: Select the No Save option on the far right of Mania Mode with Debug Mode enabled, then the Q and A keys together.

Collect sixteen medals for all Mania mode game options

Unlockable	How to unlock
&Knuckles mode	Get 11 medals.
3&K Ability	Get 9 medals.
CD Ability	Get 1 medal.
Debug mode	Get 16 medals.

These codes must be entered in the Level Select menu via playing sounds in the sound select. If entered correctly, a sound should be heared.

Code	Effect
01 09 07 09 00 08 01 01	Changes all Animals into Squirrels.
01 09 09 02 01 01 02 04	Infinite Continues.
02 00 01 07 00 08 01 05	Egg Reverie flying in any levels as Super.
02 00 01 08 00 06 02 03	Load Encore stages and gimmick in place of normal ones.
04 01 02 06	All Emeralds
06 02 01 04	Disable Super Music.
09 00 00 01	Max Control For Sonic.

In Mania Mode, collect all thirtytwo gold medals from the Blue Sphere Bonus Stages. Afterwards, the Pinball Bonus Stage from Encore Mode will replace the Blue Sphere Stages once you reach a checkpoint with at least twenty rings.