Sector type 11, Special Stage Damage, is a sector type that is used in Special Stages. It subtracts 5 seconds from the player's countdown timer, and removes or damages any shield the player is carrying.
Although the effect is not restricted to Special Stages and can be used in any gametype, it generally only makes sense to use it in Special Stages in the non-NiGHTS format.
Type of sector
Behavior
In-level sector
Damages players when they touch the floor
Solid FOF control sector
Damages players when they touch the FOF top (sides and bottom are safe)