Very very fun game. My favorite little touch you added was the multiple recordings for announcing the game lol.
The minigames are very fun. For the intended length of the game, it's right amount of repetition so you can get better at executing them. You could switch up the platformer one, but I feel like I needed to practice that same one. If you make more platformer levels, maybe you have the player keep repeating them until they get a gold, and then they see the other ones?
I love the really quick transition for the intro, its very funny. But maybe keeping the instructions readable from a pause menu might help a bit? Either way you do figure out the games as you play them more, so if you want the player to feel on their toes, I understand keeping the instructions hard to read. I think the games are self explanatory EXCEPT the odd portrait one. The intro's so fast I didn't know read/hear it and when I picked one I didn't understand what the highlighted painting was telling me was right/wrong at the end. Maybe you can just put the word "ODD ONE" above the highlighted correct answer so its clear to the player "ahh yes thats the different one, that's what I need to do next time."
Great job on the art style here, I'm a big fan of the look, AND impressed with the extra css tricks you did on the game page.