5/5 This game was excellent all around. It stayed true to the source material of the show's character's and their personalities. The setting seemed believeable, and if there would be anywhere in that world where stuff like that would lurk it would probably be the Everfree Forest, so it fits into the logic of the game's world as well. As far as feeling like an NES game, what can I say? You nailed it perfectly! The only difference I might have made was to add shiners to the eyes (the white stuff that shows light reflecting off of them) to give the characters a little more feeling.
As far as creepypastas go...this was a brilliant and unexpected one that definitely caught me off guard until I saw the house. The story was also very good and you matched the use of tension perfectly! I was very scared for Applebloom and I got out of there faster than I normally would have been able to by far. The use of the NES style actually increased the fear factor I think, rather than decreased it. And I felt genuine relief at the end after the chase (Not going into details for the sake of spoilers.)
Excellent game and excellent creepypasta 5/5