If you happened to find yourself in or near the San Jose Convention Center this past weekend, you may have met a sight rarely seen beyond television and computer screens.

There were Pikachus, Magikarps, Yugiohs and shirtless Toads. By all accounts, the event space contained enough sequins and spandex to rival the upcoming ABBA revival tour. Even Captain America and Captain Marvel stepped out in full uniform. Their weapon of choice: a teensy black pup (in costume, no less).