Okay, preety decent! I think I would do this sorta game a little diffrently, like having minigames be easier but the story changes for the worse when you fail them, and the secrets for the hidden anchivments are kinda random... but it's alright.
Also, I'm wondering about the locked difficulity, is that a thing you'll do later, or am I missing something? I beat the game, and got the secret anchievment... is it for no fails? I'm not doing that.