This underwater maze has doors to secret rooms, quicksand traps and cannons to fire you over barriers. Some cannons switch directions. Press Button 1 or 2 to fire in the direction shown by the arrow.
— Description, Sonic Labyrinth
Although the level is set underwater, the gameplay is not significantly changed. Sonic moves the same speed as before and never runs out of air.
The level uses cannons frequently to help Sonic move from platform to platform. There are also air bubbles which will blast Sonic into the air.