I'd recommend more consistent ways of make money, rn the only good ways are the treadmill and she going to the bathroom.
i'd suggest make it so she's guaranteed to drop a sweat drop when winning her in volleyball, or adding golden fish that turns into coins instead of just lying there while waiting for crabs to appear, in the fishing minigame, rn there's not much incentives to play them besides a slight chance of a single coin every so often, so that'd be positive.
she being guaranted to drop a sweat drop when winning her in volleyball is how i first made it but that gave you too much coins and i dont want a way of getting coins to be so much better than all the other ways especially if you didnt even need to spend any coins to get there, so i change it to a 1/5 chance, but if thats too low maybe i can change it so besides a 1/5 chance each time she is also guaranted to drop a sweat drop every 5th time you win her.
also in the fishing minigame if you catch the big fish you can sell each one for 2 coins with the trashcan, you can catch those by first catching a normal fish then using it as bait for the big ones, i made the big ones eat the small ones as a clue that you need a small one to catch the big ones but maybe thats not really a good clue, so i will think of another way to tell that, and i think another incentive to play the fishing game is that once you buy the grill, cooked fish is a really good and cheap food, and anyway thanks for the feedback!