All great VR games are made specifically for VR from the beginning. Taking a flat game and do a VR version of it is almost never good (I cant think of a single example where they have pulled that off, outside of simulators perhaps).
I've never played a VR game that I would call great. There are many that make for a great demo of the technology, but ultimatealy having to wear something on my face is kind of a deal breaker.
SUPERHOT VR is the best VR game I've played and it was definitely better in VR than 2D. To date, it is the only game experience I've had in VR that I felt could justify the hardware.