Bubble Take is a VR game created in under 36 hours during Boilermake 2018. It's a simple arcade game about popping bubbles, and only uses head tracking controls. It was developed on an Oculus Rift, but can support essentially any VR headset (Oculus Go, Gear VR, Vive, etc.).
With no controllers and simplified look-based UI, Bubble Take can run on many platforms, requires no controllers, and is extremely accessible.
Plans for Bubble Take include a campaign, level-based mode alongside the current endless "high score" based arcade game. Bubble Take aims to be rhythm-game-esque, with a rich soundtrack and onscreen elements pulsing and interacting with the music (while not explicitly being a rhythm game).