Hey Gabriel. Thanks for playing.
The game is about a flat earther proving that the Earth is not round, by digging down. That's the lie. Pretty stretched really, but we were more concerned with making an enjoyable game than following the theme too closely. Your point is well made though, it's not very clear. :)
As for the coins, yes, we have upgrades and cosmetics planned. Obviously couldn't do it for the jam. I was much more concerned with nailing the gameplay down.
The gun cooldown idea was in the works. I wanted a reload time. Didn't really have time to explore it, but it worries me that the player will have a terrible feeling if they fall to their death as they are trying to save themselves at the bottom, near the drill. I think there are other possible solutions, like finding a way to flush players from being stationary, either on top, or at the edges. That should help.
Thanks for the thoughtful feedback!