Awesomely retro-feeling game. This makes me think of some Halloween-themed Jak and Daxter collectathon. I'll say that I didn't understand that my goal was to get the keys initially. I actually thought I just needed socks for whatever reason, and partway through collecting the socks, I found the worm who actually told me why I needed them. The spinny combat and glide mechanic felt quite nice. I totally understand why you'd recommend using a controller, but I still managed on keyboard and mouse. Finally, the bell memory game swaps to a zoomed-in camera when you get behind the bells by a little bit, which is easy to do while rushing over to hit them; this led to me twice missing the order for the next sequence, because the camera wasn't framed on the bells.
Very retro feel. I love it. Great submission.