Movement was super intuitive so no worries about having to see any controls, I did randomly die even though i was collecting batteries and didnt collide with anything. I also ran into issues where I would go for quite awhile without any sort of obstacles or having batteries spawn into obstacles.
One suggestion I could give to counteract this is making sections into prefabs and having the objects spawn with that, i believe that should help with overlapping items. I hope this helps! Keep up the good work :)