Honestly this is one of the rare games I fully finished until the end on this jam so far (I started rating entries yesterday) and it was actually fun, I love how theme of doom was implemented through tension of the oxygen level
Also this submission reminds me little bit of one game we made also for godot wild jam (i think it was 77th gdwj ) because it also had a linear path and on some milestones you would unlock abilities and you would have to go again from start, similar atmosphere too
Good job, very nice game