In order to have good positionnal tracking, you should strap one controller of the razer hydra on the LEFT side of the rift. Otherwise, the tracking could be wrong and you might feel some simulation sickness.
If you can't attach the razer hydra correctly on your rift, you could try to edit config file (config_ggj.vrx) with MiddleVR (Free download here : http://www.imin-vr.com/middlevr/ ) and adjust offset position of hydra controller.
Team : (from left to right)
Olivier "Ades" Delbos - 3D Artist
Kevin Wagrez "Hirdannen" - Programmer
Alexandre Avenel - Programmer
MarciJP - 3D Artist
Cécilia Lejeune - Programmer
and Guillaume Bonneau - Sound Designer