I've got a big update in regards to my search for currently unavailable Jumper Two content! While I haven't had any luck in finding the desktop wallpapers yet (although I think part of my troubles are a result of how unreliable Google has gotten, especially since they started going full-throttle on all this AI rubbish as of late), I
did manage to find something else that is both currently inaccessible in the game itself and - as far as I'm aware - has not been previously uploaded elsewhere online -
Ben Briggs' End Theme 
. (there's a download link for the working file in the video's description).
Ever since I first finished Jumper Two, it always struck me as odd that the End Theme listed in the game's sound test was completely mute, since if the last cutscene was supposed to have no music, then why would there be a song listed for it in the game itself (being one of only two songs to have their composers credited in-game as well no less)? Like the desktop wallpapers I was curious to see if it was possible to find this song anywhere online, however after no luck with search engines or the WayBack Machine, I decided to go directly into the source code to find out why the song seemingly didn't play in game (as unlike the wallpapers, the .MIDI would need to be present in the files themselves to play in-game).
Unfortunately this process would be more difficult than I initially thought, as the version of the source code publicly available on the Maddy Makes Games website excludes both this song as well as the game's final boss theme. Because of this, I decided to decompile the main game itself with a third-party tool to see if I could access the song that way (normally I don't mess around with this sort of stuff, but since the rest of the game's source code and its other unique song are both available online, I figured there'd be no harm in doing it just to see if I can find why this one song doesn't play in-game). Thankfully after a bit of searching I was able to find a software which successfully decompiled Jumper Two into an editable format, so with that I was able to do a bit of digging and found the song's original file listed under the name "snd_secret2.mid".
Upon trying to play the file in VLC I quickly realised why it doesn't work in game: something must have happened between Ben creating the song and Maddy implementing it into the game which partially damaged the .MIDI and prevented GameMaker from properly reading it. I was worried that this might have marked the end of my search, however after noticing that the file was around 3000 KB (meaning that the file wasn't fully corrupted, as if it was my computer wouldn't be able to detect a file size at all) I started looking for different MIDI players with the hopes of finding one that could read the file regardless of its damages, and after a few hours I stumbled onto a software called MidiSoundSynth which not only was able to successfully open the file, but also allowed me to re-export it and allow other software to read it as well. After that all I needed to do was go through the file and see if there was any part of the song missing as a result of the damages, with the only noticeable absence being part of the string instrument near the end of the song (which was fairly easy to fix as the strings repeat the same rhythm throughout the song).
Success! After a few days of trial and error I was finally able to find the cause of the song's mysterious absence in-game and get to listen to it as intended for the first time since I beat the game, and while I have yet to find what I was originally searching for (although I'm still holding out hope in my search for the wallpapers), I'm still absolutely wrapped to be able to share this with you all!
