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 3 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.