The ideia is cool... a roguelike where you have to buy the powerups to dig even deeper and get even more gold!
However, this needs to be worked on a few points... The texts were a bit hard to understand, and the early game is a bit hard as it is very difficult to move and get gold.... and when you buy a few upgrades, you didn't feel like you're really progressing in the game.
Well, besides that, I love the pallete and the OST. The game is charming, it just needs to be polished.