I have seen quite a few and watched a few youtube videos over the matter. Would like to see who else knows anything particular that they seen in a game that just did not seem to fit. Please note im talking about real things just to clarify. I will start it off with this. Gameboy camera game camera faces that appear in minigames.
Toliet in wonderland I remember that one definitely was interesting. Have you heard of the super mario galaxy 2 hell valley sky trees which seem to also appear in a few others. Its on the shiverburn galaxy if you look up at the cliff like area.
Yeah I actually was on a forum about it myself awhile back regarding those there appears to be a connection with the kodama which have very big similarities to them. Thats just a view though which I agree with more then the others floating around.
Do a search on Creepy Pasta Majora's Mask (if I spelled that right) It's a story about a haunted video game, there are youtube vids about. My ex gf was so scared she was in tears when reading it. I thought it was ammusing but didn't see the big deal.
I heard about that one awhile back and saw it BEN Drowned. Definitely isnt really scary unless you are die hard zelda fan and the videos are more scary then the creepypasta especially this onehttp://www.youtube.com/watch?v=dMJE2NniRV4&feature=share&list=PLj3NgwoFqRcE0u1zC_IlvKXDicVD1pPYG&index=1 Its pretty long though Pokemon had its fair share of creepy things in the older ones like lavender town. Along with some of the pokedex info.
Or Yume Nikki...it wasn't creepy, more so trippy, with a morbid ending
There's also the ghost face that appears in one of the stages too
Also aside from games meant to be creepy like Silent Hill and whatnot