Cos-Play is where a person dresses up as their favorite fictional character, embodying the role of their character and interacting with everyday life. At these Cos-Play events, these delusional Cos-Players Role Play with other adult weirdos who also dress up in stupid costumes.
The costumes these morons wear are characters most often from Japanese and East Asian media. However, any fictitious character is apparently accepted to Cos-Play, including Super Heros. The pictures below focus on this Super Hero demographic of Cos-play.