Dude gets a majora mask cart from weird old man who vanishes the next day. When dude plays the cart, there is an old file from some kid named "Ben" who allegedly died by drowning. Dude deletes the Ben file and starts his own. When dude plays game, it goes all weird and the Link Effigy starts following him around as he plays the game. The game experiences all kinds of creepy glitches and dude is forced to play a filed named YOURTURN that mysteriously appears, during which all of the weirdness intensifies. Finally, the BEN file shows back up and dude plays it where he is forced to swim into the Zora lake and find one last Effigy, upon doing so Zora link drowns. A new file mysteriously appears named "DROWNED." Dude plays it and everyone he talks to says " You shouldn't have done that." until it finally says "Ben is getting lonely" and you are taken to that big field with the tree. The Effigy appears and then the game reboots and says "I'll give you one last chance, come play with us" Mysteriously the dude's original new game appears alongside the old BEN file.
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Judging from that synopsis, it sounds like a pretty interesting concept actually, considering how creepy Majora's mask is, especially that Moon.