i have a question about "everygame marathon", do i need to complete games 100% or any%? and what about spinoffs like freddy in space 2? and what about troll games like fnaf 3 demo troll game or ucn demo troll game? and i assume that i dont need to beat fnaf AR since the game doesnt end

I believe it is only Scott games (minus like FIS2 and other weird games) for all games and it is the official release. And no, AR isn't needed.