All my family was dead, I could not afford to live let alone a mole or a drill upgrade, I spent days trying to earn money only for it all to disappear with everyday expenses.
10/10 capitalism simulator.
Jokes aside : the art is lovely, the sound design is on point and the game feels very gameboy-y.
I was personally very frustrated by the "Paper please" mechanics, but I was also frustrated by the original game so I guess that's well made :D
Another source of frustration was that without a mole, I kept digging straight down only to stumble upon a block I could not mine anymore, and I could do nothing but give up and go all the way back up to try again in a different spot. It did not help that the few I had at the start were killed by perfectly immobile boulders (I would have perfectly understood if it was by a falling or rolling one). And since every new mole was more expensive than the last even when yours die, you're a bit discouraged to buy new ones.
That said, these are just personal frustration and small details, the game is great, it looks great, it's quirky and for a game jam it is quite polished. The palette swaps when you get deeper is a nice touch.