I am not a programmer but I thought I would try to do a Jam solo. The game is... cringe bad. However I did learn some tips and tricks to make me a better game asset artist.
Basically the game was Flappy bird from the perspective of the bird. You play as two Canadian geese dodging obstacles and gathering more geese for a larger flock. However, life and lack of experience lead to very bare bone game that unfortunately didn't meet all the requirements for the Jam other than being "finished" by the deadline.
The biggest was animation. I am so proud of the Goose flight animation and learned more on how to adjust my workflow.
You can't fail if you are learning.