Just played to "T-Rex Breakout" and loved it :-)
It's a recreated scene from Jurassic Park where you have to try
not to die while being chased by the Rex.
Developed by the user: "unity5games"
Here are some screenshots:
You can download and play it from here:
Here's a fan poster I've designed for this game:
This is the poster for a previous game of the same developer:
And also other ideas that could work as playable scenes:
Also all this ideas could be a very good VR Experience :-)