Here are the references:
Celesita is saying 203, which is from a Foamy the Squirrel cartoon, along with Raiden saying half and the lil' stick figures on the planet saying 'maybe we'll live'. nightmare moon is saying eternal night, the equation knife +
= DEAD, kirby, a mater ball, a flying hawk monster thing, trollface saying "ANGLES!!" and you might not know who this is but the thing saying (rainbow) DASH! is from an old N64 game called mystical ninja starring goemon.
Just an update, the story isn't going to be a JeffXReader story. It's now a normal 'I get fucked' story. More explicit so... Onto my NSFW blog!!