At first I was very impressed by the game. And the more I went through, the more I found it impossible to do it in a Jam.
Seeing the comment below, you used a 3D assets to that. Unfortunately, I am not familiar with 3D, so it is really hard for me undserstand what is you contribution here.
Could you tell me what are the things you did for the game (audio ? gameplay ? animation ? level design ? art ?)