The potential is there, it really is, I see you want to make a 3D platformer kind of thing, similar to crash bandicoot as someone mentioned below.
But, I dont think a 3D platformer fits for these kind of jams. The scope is just, too large.
First of all, the minimap was pretty useless, you never used it since you saw more with your eyes than what you could see in the minimap. And the jumping feels very floaty, it doesnt feel like you're an actual creature in an actual world. Animation is a huge part of this and need overall improvement. Unique character designs with good animations is key to a 3D platformer, with obviously smooth movement.
Bullets doesnt seem to be affected by gravity, which is another reason why this doesn't feel like an actual world. They just.. fly in air.
I also encountered a bug where you cant go uphills, you can only go downhills which was very frustrating.
For your next project:
Make sure that your scope is smaller, this is way too big for this kind of jam and need many months on constant working on before it can get released. And make sure that the gameplay is good, if the gameplay isnt good, then the overall game wont be very good. Also keep the level design simple. You need to practise on polishing a game, polish polish and more polish!
an overall 1.8/5 experience.