Yes I will make simpler levels for the beggining.
The reason the phyiscs might be a little flawed must be due to the fact that the rigidbody of the ball is of type character and I am manually rotating the mesh. The ball was too difficult at that time to control. I do agree and I will work on the physics a little before the next second update (the first will just fix the shadow issue). I will also reduce the friction, especially in the icy enviroments and make the rotation of the ball more realistic.
Thank you for the feedback. I did not think that the issue was noticable before. I wish you good luck for your future game jams!