Smashing enemies was quite satisfying, good sense of polish overall on this entry. However, as others have said I do think it's a bit too difficult and gets hard quite fast. I also found the font used in the How To Play menu a bit too difficult to read, I had to squint my eyes a little to make out the words. I do like the idea of how you're trying to protect your gold stash, but it does create this weird scenario where if you lose a bit of gold you're more likely to snowball into losing more gold and then losing. Perhaps the game could use a bit of balance or tuning on that front.
Overall though, a fine entry, good work!