Tripwire, also simply referred to as Tails Doll, is one of the current three playable Executioners in Outcome Memories, as well as one of two Executioners released with the V0.2 update alongside Kolossos. It was once a Badnik created by Eggman as a "metal" counterpart to Tails the Fox, now taken over by an evil being that uses souls as fuel. The entity possessing Tripwire has also trapped a young girl within the doll as fuel, and while she can't tell what she does, she can speak quietly.