Hello again!
This is my first jam with a visual theme, so I can totally understand the confusion. Nevertheless, you did great.
About planning not to have a visible path, I am happy you did not go with that. I think it would be a bit frustrating to die without knowing why. Also, from my experience with the game, I found that the level design focused mainly on the path itself and how the enemies are scattered around it, and that really clicked for me.
Lastly, I know you planned to reveal the path gradually as a learning process when the player dies and completes a mini game, but from my experience with jams, players usually do not wait for these things to happen. They may spend only about five minutes on average trying the game, so that approach might feel a bit slow for them.
All the points mentioned above are based on my past experiences and are not necessarily true.
Again, you did great!