I almost gave up on the third level, before I realized you can kill the top snake just by jumping and slashing close. Personally I would not add particularly challenging things before you get to your hook. People might give up before. 

The idea of ever changing levels is fun and I loved you included cut scenes, they really enhance the experience.

Good job making this! It has a nice message/commentary, and also just an interesting and fairly relatable story. I think you did a good job with the difficulty curve and making the upgrades feel like they made the game worse from the level design (at least that was how I felt and I assume where you were going with the story) with how it is hastily added and the assets do not match. It lasted for a surprisingly long time. I am sorry that it broke, though, and I may come back and go through for the last story beat after the jam ends (I assume you've fixed it based on what you said).

I really liked the difficulty of it, as well as the sprites. You did a good job! 

Cool graphics!  I also saw your comment about godot version upgrades, I feel that, last year had to do the same thing.  Congrats on getting the game out!