Rainbow-200 (stylized as "rAinbow-200") is an entity added in the April Fools 2023 Event and it replaces A-200. It will make its first advent upon the opening of door A-200, it acts identical to its normal counterpart A-200
When Rainbow-200 spawns in, it will make a thump sound, followed by the sound of wind on the other side of the door. After its cue has played, Rainbow-200 will phase itself through the door in front and make its way towards the lobby, killing cookies by eating them.