The Jet Gun is the buildable wonder weapon in TranZit, seen in the world wide release trailer right at the end, it is basically a reverse Thundergun in the respect that it sucks the air around it in, creating a vacuum that pops zombies heads. Still, it is slightly ineffective, seeing as how if it overheats it breaks, you can't move very fast whilst using it, and that it takes a moment to warm up. Though this can be countered if a you treat it like a death machine and spin it up whilst pulling it out. The only funny thing you can do with it is if you jump off a ledge and power it up you will float for a few moments, but your timing must be good, and it is not really that helpful, unless you feel like flying above a mob onto the bus as it passes.