Awesome, thanks everyone, glad you like the look of it so far.
@terri, for things specific to VR I didn't really run into many issues, just the overall issue of performance, keeping framerate super high, so besides making sure everything is very optimized. I was using the activate game object constantly to do things like turn off enemies until you really need to see them on screen and trigger them when you get into range and so on.
Other things like projectiles will be destroyed within 3 seconds if they hit something or not etc etc.. Hundreds of little on/off dials to keep the larger thing running well:).