This is a platformer with a high density of hazards.
Once I got to the thumbnail hole, I turned the game off immediately. I watch a youtuber do those on the regular (GrayStillPlays), and they never look fun to deal with, especially when you're restarting at the beginning every time.
Well done, otherwise, for your first jam. Game Design issues are the easiest to adjust for. Come back in January, and shoot higher!