My Dad will roll his eyes, but I think this is awesome.
Taking class Christmas carols, songs, and hymns and remixing them isn't exactly new. Taking songs and making 8-bit chiptune versions of them isn't new either.
8-bit Jesus not only combines these two concepts, but also the style of specific NES companies and franchises. There's We Three Kings as a Konami track, Super Mario Bros' version of Jingle Bells and the ever-peaceful Stille Nacht as a Mega Man theme.
I'm in retro-holiday awe and bliss.