nice! i love this sort of minigame collection stuff! i think the rule explanation could be more clear, e.g for the coal minigame, having all three buttons visible, but the inactive ones greyed out. it just helps to more fully understand the game in the split second before it actually starts (of course none of the games are particularly difficult, but it's just something i thought i'd say)
i'm not sure how well it maps to the theme but oh well! still a fun little game with cute theming