Hello ! Sorry for the very late reply ! I'm not active at all

So very interesting questions you got there.

Regarding my submission, I used the regular ePSXe 1.9 (I think... it's been so long) I couldn't have the video because either my stream died or I ended it after seeing too much frame drops.

During the run : Mission simulator is allowed As you said, saving the game will allow you to play on others difficulties Superplanes are able to be used when unlocked (check my 100% guide) O.S.L. is allowed when unlocked About the hidden weapon. I really didn't know about it. I don't think I'll allow that.

So you can use any emulator as long as it does not affect the gameplay and save states are forbidden.

Hope I've awnsered all of your questions !

Lastly : My time is really bad and is beaten easily by atleast 30 minutes to 1 hour if I remember correctly

Hello ! Sorry for the very late reply. I'm not active at all

Yes. It doesn't affect the loading times nor does speed up the game