I'm pretty sure I've never heard of Jumper Zero, which is weird since it was apparently hosted on MMG.com? I have a bunch of other dumb stuff though, which I can upload on request/after checking what some of these even are. Almost all of these are demos because who ever heard of a COMPLETE Jumper fangame.
Jumper Conducting Chronicles
Jumper Crappiness
Jumper Dark World
Jumper Eclipsed Sun
Jumper Lost Past
Jumper Madness
Jumper Mini (by me7356)
Jumper Mini (by LordTomahawk)
Jumper Mini (by Crapo Artworks??)
Jumper Ogmo's Revenge
Jumper Phased
Jumper Return of Ogmo
Jumper Tale Of Ogmo 2
Jumper Two Music Video (??)
Ogmo Boss Fights
Ogmo RPG
Ogmo's Adventure
Shanko's Legacy (honestly, I should probably upload this alongside my LP for posterity)
Dark Kane Da Game
Dark Kane Da Game 2
...And there may be some others that don't have recognizable titles, or stretch the definition of "Jumper fangame," or I have source code for yet may or may not have ever been released. This includes my fangame, Clicker, which I don't think I even released a demo for.
Also, I already have
the Jumper Community Project and
I Wanna Be the Jumper on my site. At one point aimaina tried continuing IWBTJ where I left off with a few new levels, but I'm not sure if I kept that anywhere.