Making a 3D game as a first project is quite ambitious! I do wish you guys would consider a slider for mouse sensitivity for future 3D projects, as they can be a make-or-break thing with a lot of people. The sensitivity in this one makes the camera feel a bit dizzying.
At first I thought the phone signal was supposed to guide you to the location of the toys? Which would make for a fantastic gameplay mechanic, but I suppose it's not quite working yet. If what I described was the intention though, then there's potential here!