Finding those keys sure took a while
Notes:
1) As always, I'll keep God Mode off until I need it, or for as long as possible until it takes away from enjoying the game.
2) I used 'noclip' to get to the megasphere then turned it off cuz I couldn't figure out how to get to it.
Gameplay Playlist
https://www.youtube.com/playlist?list=PLH9X4m3s2fccBb2hbn4i48kSFfDhVnhLB
Gameplay Setup Blog Post
https://www.pateln01.com/2024/08/doom-2-legacy-of-rust-on-android-via.html
...
https://www.youtube.com/watch?v=UGHq0KKe6IA