Pokemon x Game of Thrones. Best. Crossover. Ever.
Cosplay by DLo Cosplay.
"Anthropomorphized Pikachu" was a popular choice at SDCC.
A Ruin Maniac is a type of trainer from the Pokemon games, often dressed as explorers or archaeologists. Their appearance usually indicates that a rare Pokemon or event is nearby.
She made her Pokemon Go trainer outfit pretty fast, given how recently the game came out.
Ash Ketchum is the main character of the Pokemon anime, which came out in 1997. It's currently the fifth longest-running animated series of all time.
In addition to specific characters from the Pokemon universe, there was a strong presence of generic trainers sporting costumes on a wide spectrum of complexity, from full-on cosplay to simple Pokemon-related apparel.
This trainer is all about the fire, bringing Charmander and a Charizard hat along with him.
Pokemon Go players were prevalent even outside SDCC, with trainers congregating at the numerous Pokestops and gyms in downtown San Diego.