Terror Radius

"I don't know what it is about that Ian kid, but... his aura frightens me."

- Floyd's Journal, Nov. 1994

"Again, my senses have proven to be the keys to my survival. If my heartbeat rings in my ears, the Killer is close. If I see the "red stain" in my surroundings, the Killer is even closer!"

- Mysterious Note

The  is an integral Game Mechanic in Cyberkidz.

Overview
The Terror Radius is a feature intended to induce fear and anxiety in Survivors, causing them to experience The Heartbeat, a sound effect triggered whenever Survivors enter the Killer's Terror Radius and intensifies with proximity.

The Terror Radius
A Killer's Terror Radius is generally set to 32 meters for those moving at 4.6 m/s or at 24 meters for those moving at 4.4 m/s. However, there are some Killers that do not follow this general rule and have a different Terror Radius and sometimes multiple Terror Radii (see Table below).

Status Effect
There are several Unlockables that can temporarily cloak a Killer's Terror Radius, all of which apply the Undetectable Status Effect.

The Heartbeat
The Terror Radius causes a Survivor's very own heart to beat audibly. The Heartbeat sound effect will get louder and quicker the closer in proximity the Survivor is to the Killer. That it is indeed their own Heartbeat and not the Killer's, as Benedict's journal entry would imply, is confirmed by a Mysterious Note found in The Fog and by the actually visible, beating heart Cyberkidz Mobile introduced into the Survivor model as a replacement for the audible Heartbeat in cases of Players playing without sound.

The Terror Radius Music
The Terror Radius Music plays for Survivors whenever they are inside the Killer's Terror Radius. The music gets progressively louder and more aggressive the closer in proximity the Killer is to them, but outside of a Chase.

Older Killers generally use one of 6 available generic Terror Radius Music themes, whereas newer and reworked Killers have their own, unique Terror Radius Music.

The Terror Radius Music has 4 layers to it; whenever the distance between a Killer and a Survivor undercuts the next quadrant of the maximum Terror Radius distance, the music seamlessly transitions to the next layer, which can be used to accurately gauge a Killer's proximity, based on the knowledge of a Killer's default Terror Radius range, given that the Killer does not use any Terror-Radius-altering Unlockables.

The Chase Music
Killers do not hear their own Terror Radius music, instead they hear the general background music that plays on all Maps. It is only when a Survivor initiates a Chase that the background music will be replaced by the Chase Music. The Chase Music is similar to the Terror Radius Music, but without the aforementioned layering based on distance. In a Chase, it will be heard only by the Killer, while the Survivors hears the regular Terror Radius Music.

Akin to the Terror Radius Music, older Killers use one of 3 available generic Chase Music themes, whereas newer and reworked Killers have their own, unique Chase Music.

Trivia

 * The Minotaur is so far the only Killer in Cyberkidz to have a Terror Radius until Ian (Evil) is unlocked as a Killer.