Terror Hall is one of the multiplayer stages for the Quick Race mode in Sonic Heroes. It takes place in a different part of Mystic Mansion. When playing through all three stages of Quick Race this is the third stage in order if both players each won one of the previous Quick Race stages.
The stage starts in a hallway blocked by an Egg Magician. Once this enemy is defeated, a large wooden door up ahead opens, revealing a circular chamber with stone walls. After defeating the Egg Hammer inside, the player can proceed up through the chamber using a giant fan built into the floor and enter through a hole in the wall, which leads to a hallway with an Egg Pawn. The hallway ends in a circular room with Pumpkin-Head Ghosts flying around the Goal Ring. The first team to reach the Goal Ring wins.