Is there a walkthrough somewhere for which actions to take in the submarine chase sequence? It is very frustrating and replaying it again and again with that infuriatingly slow cutscenes are driving me mad.

Any help would be appreciated.

Walkthru is here - http://thejourneymanproject.com/presto/journeymanprime/faqwalkthru.html . ;)

You need to wait until the third sub base to try to turn into it. Aside from that, trial and error with a predominance toward turning left.

Have tried escape but it doesn't seem to skip anything, mind you I have just realised that I have rebound the Esc key to pause so maybe that is why it doesn't skip.

Thanks for the second tip, I may change it just to skip the submarine section and then change it back. At least for the tunnel car, you had a map, which I memorised to get through it, but the sub section is just trial and error.

Also, some of the arrows aren't very responsive. I ended up having to slam the keyboard arrows super fast to be sure that it would respond.

You shouldn't have to do that. Instead of repeatedly tapping, just hold down the direction key in the direction you want to go when you see the prompt to steer.

An additional comment from one of our programmers: if you change your mind at the last moment and decide to switch directions, the last key held down when the steering prompt disappears will determine where you will go.

On Mars, you solve the bomb and go into the tunnel. At the end you get in a ore lift and come out in a hall with as airlock at the other end.
Is there a trick or special way to get through this? I can't get in the airlock fast enough to turn it and I die.
OR is there a way to fill the air canister before I go in?