Cute game! Though, there should be a map display that shows where the minigames are located, it took me some time to find all 5. Also it seems there's no point in buying cosmetics since there is no equip menu or anything, unless it is a physical location you have to go to (I haven't been able to find it). One other thing: it's difficult to see the start game prompt when it is night time since the text is black.
As for the minigames themselves, most are fine. I think the digging minigame could have been designed a little better since no matter what you dig up you always earn a random amount of points. Maybe have it so that each treasure yields a different amount of points--it would keep the randomness of the game but also add consistency and give the treasures themselves more value.
Overall, good job!