I believe we'll need to tweak the difficulty in the future, may I ask if the difficulty was a result of the oxygen mechanic, the enemies or movement limitations?
I think the problem is, once you go down a wrong path, and there is no oxygen, you’re doomed. there is no way to remember the map for the next play. maybe the oxygen should last longer. and having a mini-map would be great :-)
We had an idea for a map or some sort of a radar to display enemies / resources, but frankly it's feature that might be added in the future - we'll see, for the Game Jam we wanted to introduce what our team of four has managed to accomplish! :)