My tiniest of gripes is 4 in roman numerals is IV and not IIII.
Other than that, this was fun and easy. I would maybe like to see some sort of stats tracker either over all or above each room to know how much I am making in each room. I struggle in games where the goal is to min max different areas, so not knowing if I am getting the most that I can in each room was an issue for me.
All in all great game!