That's too bad, really. From the little I remember of it, it was certainly goofy enough. I'd kind of like just to be able to reread it for the sake of knowing how the series ended...
Oh well, I did find another Ryoga fic though.
http://ucnhp.tripod.com/fanfics/ep9.html
Probably not as riffable as the James/Chris stuff as most of the dialogue seems to be taken straight from the Ninja Gaiden games. The story's the three games put into a blender, with two useless characters added, and the legendary, but off-camera, Ryoga MKN.
" "Ninja Gaiden is a world of stealth and strike. A great strategy and adventure world, which will catch any unprepared person off-guard," said Lana. "It's why I forbid people to go there."
"I can handle myself," said Keisha. "Please, Lana. This could be a problem down the road."
Lana grumbled her face, then said, "All right Keisha, but I'll only let you go if you take someone who is half-way familiar with the world. I don't want you assassinated."
"I'll accompany Keisha," said Sandra. "I have read Ryoga MKN's strategy guide on how to beat Ninja Gaiden games in one life."
"Egads, what?" asked Lana. "Someone actually knows how to survive that perilous world?"
"Yes, Ryoga MKN," said Keisha. "He inspired many of us with a true upset victory over a great video game player, putting himself into the annals of video game history. He once had a chance at a greater prize than even Kevin did, the World Championship of Video Games!"
"I didn't know you took this mission this seriously," said Lana in shock"