Thanks for the feedback! Yeah you're totally right, we were going to add a small indicative that you have to press space bar to open the chest if you want. Also when going to 3D we were going to add a small text that explains that to escape the cave you have to go back all the way you did when entering the cave. So yeah the game has an end, you have to go back to the entrance of the cave
These are some small things that end up out of the game because of the lack of time and because we ran into some 3D bugs, but we might add them after the jam. Right now we are recovering of working overnight to finish it hahaha
Glad you liked the game! :)