Abnormal Rooms {K, Y, and soon F Section}

This is a rooms fangame where there are rooms. In this game, there is instakill. But there will be revives that cost something collectible? Has its own lore where entities are invincible with no guns. Entities are not flesh and bone, They are most likely 4d objects that you cannot touch but they can hit you. The material of them is thought to be made of pure space fabric projection despite not being able to touch or see any surface of them. You cannot see the backside or any other side other than the entities face because they probably dont have another side and thats how they are 4d. another sidee