I'm glad you went to the effort to play the game and got it to work and enjoyed it.
In all honesty we were still tossing up in between crash and ratchet for our attacking etc, we originally scoped for more features but scoped down, we had planned to have a ranged attack which didn't make it, but combat is something in the future we plan to polish and we will pick a direction more solidly.
Regarding files and errors I think some of these were due to the UID and a few other errors we had some assets are gltf some are FBX, but that is all things that were fixing for after the jam build, optimizing everything and fixing the saving as atm it isn't working completely.
We didn't get to the optimizing part of the jam build we underestimated level design time for 3d.
Some parts of the levels are still csg shapes.
But thank you for taking the time to try it out and updating us!