This was a really good idea! It looked nice and controlled nice. I have some suggestions, though.
Right now, it's essentially a 3D pixel hunter "find the object" game. That's fine—but when you can only move backwards and forward...can't reorientate yourself...have low visibility....and objects surrounding you you can't move...it makes it not *difficult*, but frustrating.
Despite REALLY liking the game and really trying hard to beat it (spent 25 minutes in the game, which is short) I only made it to the red door lock with the room with the plants. The controls, the nauseating camera movements, and now with the shrubs obstructing my view made the game physically difficult for me to continue LOOKING at. My eyes were straining, feeling dizzy, etc. I had to shut it off. I'm not normally very sensitive to motion sickness, either.