Thank you so much for your feedback! This means so much to me 😆.
It's normal that there is a difference in quality and complexity between the two games, since they were made 3 years apart (I made avoid the skulls when I was 13 and I made PlatformGears this year. I made a few other games during these three years, which I will post here maybe but I think that the two I have already posted are the most fun ones).
I changed the Game session to "a few minutes". It is a good idea to mark the levels completed, and it's an easy fix. I will implement it in the next version ☺.