So I just gave it a play through (didnt win). I really like the use of the cash to display text to player, it really helps to create a sort of reveal with every object and makes things feel important. I did worry when I was placing items on the cash because it felt like I was going to get eaten (by hearts, err, sometimes top hatted hearts?). The concept is a super new one to me, I think its got some room as well for some really different directions if you guys want to build on this.
Be it a score-attack style or a game that makes you make decisions to buy specific items while on a budget all while being attacked. I know in real life that going to a cash at times, I try to guess the exact number for the price of the whole thing. Forcing players to use that sort of real world intuition could really help flesh out a sort of survival-shopper.
GG