With DDR I mean: Instead of ordering 0,1, Q in each line, make three parallel lines and let them flow down simultaneously like a three line guitar hero song. You have to press left for 1, down for Q and right for 0 in the correct moment instead of holding left for 1, doing nothing for Q and holding right for 0. This would not only give the opportunity for faster gameplay, but also for more diverse patterns for each session instead of relying on pythons random number generator. For example, in the current mini game, you can get lucky and do nothing for 5 to 10 seconds, because you get 5 or 6 Qs in a row.
Some other minor things you should maybe look at again:
-> during some chapters Iris stripped multiple times and every time I got the notification that I unlocked the stripping.
-> When it's payday, you get the same text messages from Ember, even when you have to bring it to Celeste. I don't know if that's intended, but some variety in the conversation or wording would be great.
-> The ominous phone voice is absolutely pathetic and hilarious. You should pay a male voice actor with a very deep sultry voice instead. (Btw, I love the voice acting, even when it's audible that they are inexperienced. Initially I thought you used AI voices because of that.)
As a developer it sure is important, but most free content creator get a mental breakdown by the slightest criticism like a chronically online twitter user, which is why people usually don't criticize (or they simply don't know how to). Or they saw the mini game and were like "Oh hell no" and moved on forgetting about your game.
While I'm at it: I loved cowgirl casino 2 the most, because the girl got extremely big. So, don't worry about making her unrealistically big. It just adds to motivation to progress the game.