It's a nice game for a first VR Jam. I had fun shooting the stuff. I like the explosion. I managed to shoot a chair up the ground and shoot it off the play area. hahaha.

I had to constantly hold the gun and then shoot, that's hard with HTC Vive controller, so one improvement could be that the gun gets automatically attached to the hand. In that way, I can just press shoot. 

Also, I would give the user a choice between teleportation and a continuous locomotion system. Some people may get motion sick with continuous locomotion.