Hunter Knight Tsurugi

Hunter Knight Tsurugi is/was Ultraman Hikari posed by rage and the desire for Bogar's distroction.

Ultraman Mebius
Born from Ultraman Hikari's vengeance on Bogar's rampage on Aabu and it's natives, the might Hunter Knight Tsurugi was born to hunt down and slay the vile entity. After taking down a Dinozaur attracted to Earth by Bogar, Tsurugi quickly did the same to a pair of Sadoras attacking Ultraman Mebius before flying off. Tsurugi later appeared to fight Bogar time and again all while using the former GUYS captain Kazuya. Tsurugi would often team up with Mebius to fight Bogar until she evolved into Bogarmons and had the explosive potential of a nuclear weapon. Thanks to a combination of GUYS technology to contain the explosion on a desert island and Ultraman Mebius, Tsurugi was able to avenge the Aabu with a Knight Blade through Bogarmons's heart. Shortly after that, Tsurugi was taken to Nebula M78 where Mother of Ultra removed the armor so he could become Ultraman Hikari once again.

Ultraman Hikari
During Ultraman Hikari's battle with Babalou Seijin he summoned the power of his former Tsurugi armor into the Aabu Armor. A version used for justice instead of revenge, Hikari used this to mercilessly beat down Babalou Seijin who in turn could do nothing to stop it. After a short fight Hikari used the Aabu Knight Shot to destroy the imitator for good.