I got the Occulus Rift VR and I have Robo Recall which is amazing. Best VR game I have played. Superhot which is also great, makes you feel like you are in the matrix. Then I have Gorn which is one of the most violent games I have played, it's a gladiator simulator. Also have Thumper VR which is a rhythm game but very fun, you can play non VR but it is much better in the VR Headset.
(Bear with me for a second. My headset won't arrive until tomorrow, so I'm just spouting the sales pitch)