I actually found it here, but the actual link to the story isn't listed. Plus the commentary can be summed up as "EW YAOI AND LEMONZ!!11!" anyway. Oh why the hell not, let's make fun of the commentary too. A MST of a MST! MSTCEPTION.
Title: Trash Science Theater
Author: Anonymous/TheReviewer18/Shamanic Shaymin
Fandom: Earthbound Zero (Original) Five Nights at Freddy's (MSTing party)
Warnings: Crude humor, language, and sexual innuendo. UNDERAGE SEX, homophobic blather and OOCness in the original.
Ships/Characters: Ninten/Loid (Original), Freddy, Bonnie, Chica, Foxy (MST)
( At least Balloon Boy isn't involved. )