Sorry to hear about your experience.
The time constraints of the game jam made it challenging to add a save feature, but I understand how frustrating it can be to lose progress.
The bug you mentioned with the camera and character is definitely on my radar, and I appreciate you pointing it out.
The inconsistency with object damage is a known issue:
the higher the damage upgrade, the harder it is to destroy smaller objects.
This wasn't intended, and I’m currently working on fixing it alongside adding new features.
Thanks for your feedback. Stay tuned for updates!