Oh, thank you for asking feedbacks!
Well, I haven't unlock every items yet. Because it was so hard to making money with the five coins of 'pity money'. It takes almost 30 mins to unlock just one dealer costume.
I think it would be nice to increase the initial fund to 500 coins and add a 'reset button' that initialize every items and coin state.
Also, if you want to keep this game's mood to light and casual as now, why don't you add a save slot system? It may seem like cheating, but I think it's essential system for people who enjoy games lightly. Maybe it's okay without that right now, but more you add new contents (other gambles, unlockable items, options to tease dealers, etc.) in the future, the higher the expectations for adding that system will be.
Thank you for making cutie games.
I will continue to support your team through substar.