Woah. First games I'm giving a five outta five on the aesthetics. And a cutscene at the beginning with Count Chocula Dracula? Now you're just showing off lol.
Controls are pretty good. Between how fast he falls, that nice "thud" when he lands on the floor, and his grunt, Fernando feels like he's a bit of chonky boy, which is good because heavier feeling characters usually feel better to control in 3D platformers imo. I wasn't sure if he was losing health at first when I dropped down like a troglodyte from the top of the tower, or if the only punishment for that is dropping your books.
Eventually I realized that I wasn't gonna die from it, so my strategy became "collect as many books as possible and then dive bomb to the ground" because the dropped books are really easy to just re-gather after falling, even a huge stack of them. Not sure if that's how you wanted it to be balanced but my strat of obliterating Fernado's kneecaps and shins was kinda funny.
Clipping on the stairs is a little awkward. Some of the stairs work just fine, but the stairs on the first level just completely block my character from moving at all. Usually it's better to just have an invisible ramp as the actual collider for stairs, and the steps themselves are collision-less meshes.
Good stuff, guys.