COLOPL released its new robot fighting VR game which is compatible only with the Rift devices. The new title available for 39.99 USD / 3990 Yen (with tax) in the Oculus store.
This title is a one vs one robot fighting game where you have to customize your own robot and you have to kick out from the area the enemy one.

360° Arena: Matches take place in a circular 360° battlefield. Keep alert on all directions to survive!
Dual-mode Combat System: Switch between combat modes and execute short- and long-range moves on the fly.
Online Multiplayer: Connect to the internet and fight against players from around the world. Or if watching is more to your taste, spectator mode allows you to view matches between other players in real time.
Feature-Rich Training Mode: The training mode lets players tweak and adjust every aspect of the battle to practice moves and combos. Hone your skills to take on unseen adversaries!