SCP-151 is a painting, showing the perspective of someone underwater. If anyone looks at SCP-151, the person drowns.
SCP-151 is a 4x4 painting. If a player looks at SCP-151 the player will suddenly start drowning to death. Looking away stops the effect.
SCP-151 is to be contained in a 4m x 5m x 4m chamber made out of wool. Only personnel with Level 2 clearance may enter the chamber.