There are Pokéstops and gyms in every neighborhood in New York City, and countless cheery little Pokémon to capture, animated and flying or bouncing on a phone’s camera screen with the real world in the background.

That real world includes spots like this corner on the border of Bedford-Stuyvesant and Bushwick, where the sight of addled men and women passed out, nodding off or stumbling has become so common that they have gotten a nickname: zombies. On Tuesday, 33 people from the area were hospitalized after overdosing on what the police described as a bad batch of K2, or Spice. The police raided five bodegas suspected of selling K2 the next day, but found none of the drug.

At the same time, the police issued an advisory to Pokémon Go players to be alert at all times and aware of their surroundings. The corner where Mr. Reams was on Thursday would seem like a place to be avoided if possible, but he said otherwise.

“There are a lot of Pokéstops in the area,” he said. “At night, it’s a little bit unsafe. You can find yourself in a tough situation, especially right there at that corner.”