Physics are complicated honestly, I always avoid making them till the last possible moment myself :') I also noticed you created the game with Unity which is also impressive, since even though it's a popular engine I feel like it's harder to use for beginners.

There isn't really that many bugs to fix, all basic mechanics work well enough for a jam game. I believe that if you fixed these, the game would already feel a lot better.

BUGS
- I think the biggest problem is that collider boxes feel off. At the first level, you can walk left/right from the box but still not fall down. I recommend shrinking the player collider box so the hat for example wont be collinding with the platforms, only the player body. If you wanted the head to collide too, you should use two collider boxes. It's a good practice to only use collider boxes for areas that are visible in sprite.

- Can move with right/left arrow but can't jump from up button.

- When hitting the volcano or the stove, the player character will disappear but not respwan.

TWEAKS FOR YOUR FUTURE POSSIBLE BUILD

- The biggest clunkiness in movement is the slide that happens after you have walked a while. Usually in games (if the ground isn't made in ice or smth), the character stops moving almost immediately after running. I assume you're using rigidbodies so using some physic materials should quickly fix it, for example.

- I would try some other approach with arrow managing. It would be nice if I could manage them with 1, 2 or 3 for example. Or if you pick up an arrow while not holding any arrow, I would make the picked arrow automatically chosen to minimaze the hazzle with arrow selection.

-------------------------------------

That's everything I found. But this is a good prototype already, and like I said making a platformer with Unity especially without using tutorials is difficult. I seriously liked the game and am happy if you manage to keep working with it, I also sincerely hope you'll get to continue within this competition since I can see you worked hard and created something more unique. So in my opinion, you deserve to be proud of the game.