Hunter Blinds don't always show up on the map in Marvel's Spider-Man 2. These are some of the most enjoyable side missions in the game: Kraven and his cronies have set up bases of operation throughout the city, and it's up to Miles and Peter to find them, collect their intel, and shut them down. There are 14 Hunter Blinds in Marvel's Spider-Man 2, with two or three in each neighborhood where they appear. Once the player clears out an entire district's worth of Blinds, they'll unlock a new Hunter Base, which is like a larger, more complicated version of the same kind of activity.