An ARG, Alternate Game Reality, stemming from the youtuber, Anomidae, who is using the Source Engine usually used in Valve games such as Half Life 2 and Team Fortress 2. Can be seen in most and if not all source games. The following will be listing off all the types of demos and what they look like. Type 1: random jittering and shaking of the camera. Type 2: camera is stuck out of bounds before dying. Type 3: aimless gameplay for a couple minutes. Type 4: actual gameplay. Type 5: ???