Hi! Thanks for the detailed feedback!
About the design decisions:
2 ... add possible mouseMove camera rotation
The game was inspired by GeoGuessr, and therefore I tried to mimic this style of movement instead of going into the traditional FPS movement.
I've also noticed some bugs you wrote weren't bugs but rather intentional. So I want to clarify this first:
3. ... no time pause inside <map view>
4. ... unable to die when oxygen reaches 0 if you have opened map
- Yes, time goes on like in GeoGuessr, but the enemies stop attacking you while in map view
And when you're 0 in oxygen it simply forces you to guess your spawn point instead of killing you, which I chose to do to forgive the player as this is just a game jam. Aand you can't close the map when you're on 0 oxygen so I would say it's fair.
5. ... oxygen says 0 but in background number is negative (<map> -> drain oxygen -> try to gain oxygen -> bug becomes visible (you die even if you gain 50ox)
If you guess wrong (too far) then it does go to below zero for a moment, but you got to guess close enough and it will give you the oxygen.
But yeah the game isn't perfect and could be improved, and thanks again for the feedback :)