I'll be honest, the penny dropped as soon as he sat down in front of the piano but I loved it all the same. I have to agree, it was one of the darker points of Super Mario 64. Ahhh, the way it chased you and then suddenly... stopped. Leaving you shitting bricks wondering if you'd be able to dash past without getting munched. Good times.
And can I just ask... Hitler?! Whaaaaaaaaat the fuck?
Anyway, loved it! Well done and look forward to seeing more of your ideas!