With most superhero movies these days, there are two types of post-credits scenes: the teaser for the next movie, and the gag scene. The gag scene has its roots in the post-credits scenes of ‘80s comedies — think the “you’re still here?” stinger at the end of Ferris Bueller’s Day Off — and still lives on today even in superhero movies. Usually they’re the final coda after a meatier mid-credits scene teased the next film in the franchise, but in the case of The Flash, there’s only the one. And, surprisingly, it’s a gag scene.
