Actually it is possible to get the unstable ordnance without hacks/debug. I did that several years ago. What you need to do is:
1) Play without DosBox. Set game's speed to maximum;
2) After you get out of the sewers go one screen north;
3) Return to the previous screen as fast as you can (sequel policemen won't be able to shoot you because the game is too fast);
3) Now you can safely pick up the unstable ordnance;
4) Go one screen north and one screen east. Save the game;
5) Restore your saved game in DosBox;
6) Go one screen south and get into the ship.
Alas, I doubt I have the old demos on my PC anymore, maybe someone else could help you with it :(
I've decided to make a belated update:
http-~~-//youtu.be/_G8fNkKXiyY
From the video's description:
There is also a character 'VIII' in statusline's font of floppy version. Also there is an unused inventory item labeled 'SP' (maybe, Sequel Policeman disguise?) as well as walk cycle of SP without a gun.
To be honest, I've only watched one episode of The Next Generation. Now that you've mentioned the Star Trek, I think that I have to give it a go. Which season would you recommend me to start with?