For a game hosted on COG’s site you can follow this guide: https://forum.choiceofgames.com/t/how-to-see-other-games-code-current-info-posted-in-op-and-post-146-on-6-18-19/1328
Note, you need to own the game in question (or you’ll only get access to the free demo part of the files).
If you have Steam version of the game, it’s a little different, but basically the whole game is compiled into a single file which you can load and view in a text editor.
I don’t know, but i think if you put the address of script file you want to see in the browser, the way the post describes, it should display it just like pc version of the web browser can…?