This pool is for posts representing this fact. This usually means an image qualifies if it has a combination of these items:
Red being in a cave or in the middle of snow. (technically, Red is in a cave without any trace of snow in GSC; or at a snowy mountaintop reachable through a cave in HGSS)
Red interacting with a player character of GSC or HGSS (Ethan, Kris or Lyra), especially if they battle.
