Oculus Rift DK2: Vanguard V
From the makers of Proton Pulse comes Vanguard V, a third-person rail shooter designed specifically for virtual reality.
Here are my impressions I wrote on NeoGAF:
I also finally checked out Vanguard V, a third-person rail shooter designed specifically with virtual reality in mind. It reminds me of Rez/Child of Eden in some ways. You use the Oculus Rift headset to aim your reticule over targets and fire while trying to dodge objects and attacks yourself. I like the look and music, and the gameplay, menus, and text input are handled well. The same developer made Proton Pulse, and they've shown an understanding of how to design systems specifically with VR in mind. I hope they continue making projects.
The game's Kickstarter ends in 38 hours. It doesn't look like it'll be reaching its goal, but you can acquire the demo by making a donation. I donated $8 myself, but you can donate just $1 to get a link to the demo. It'll take a little bit to get your download link emailed to you, but I think it's definitely worth checking out.