Enerbeam

EnerBeam is a device utilized by Sonic the Hedgehog, Miles "Tails" Prower, Amy Rose and Knuckles the Echidna in the video games Sonic Boom: Rise of Lyric and Sonic Boom: Shattered Crystal.

Description
EnerBeam is, as the name implies, an energy beam. It consists of several lightning bolts intertwined to form a whip. It can extend when necessary, behaving much like a bungee cord. Its color matches its user's primary color (e.g. Sonic's EnerBeam is blue).

The EnerBeam is a versatile technique which can be used for many purposes, both for navigation and in combat. It can activate gimmicks such as ziplines in order to travel through a level, or pull protective shields away from enemies in order to expose them to attacks.

Trivia

 * In an interview with Bob Rafei, he stated that the EnerBeam tether idea came from Knuckles' Chaotix.