We’ll meet the intrepid cosplayer this week, share the ups and downs of her preparations as we get closer to the convention, and finally join her behind the scenes at BlizzCon itself in November. And Beth , avengers costume we know that you’ve been to Comic-Con many times and you all know how crowded it can get in those hallways. Some of these people become their closest friends. Cosplay – meaning costume play – is where people dress up as their favourite characters, iron man costume kids with some spending hundreds of dollars or hours of time creating the ultimate look.