Yeah, to be honest, I was actually planning to improve the game, but due to schedule conflicts, most of its features are still in the prototype phase. I only had around 7 days to work on it, and almost half of that time was taken up by school responsibilities.
Regarding the upgrades and gold, they weren't supposed to work that way. The upgrades were intended to be cheaper, while the gold was supposed to be randomized rather than limited to just 2 per run.
As for the radar, it was actually intended to be a little difficult to use because I thought it would be too overpowered if it revealed too much information. The idea was to make players decide whether to take a risk by digging in a particular spot, potentially wasting some of their digging limit, or try another route to find the treasure.
I also intended for the hidden objects to have similar appearances to make players rely more on exploration instead of immediately knowing where everything was.
But I'll definitely take your feedback into consideration. There are things I would like to improve if I get the chance to work on the game again in the future.
Thank you for taking the time to play and share your feedback!