The visuals are good; sounds get repetitive quickly. I like the concept, but in execution it is not fully fleshed out (which is normal for a jam game of course). One thing i'm a bit confused about: why is it game over when the starter truck is destroyed, when i still have 3 more trucks.
I felt like there's a restrictive "build order". I had to start off by buying a couple of grappling hooks, because otherwise i would not be able to buy another gun quickly enough. I did like the idea of grabbing resources along the ride though. It just didn't feel like i was really in control at any point.
The gatling gun seemed way weaker compared to the rocket launcher.
Overall a good jam game.