Aside from banning the usual, like actual military costumes and transparent costumes, they are also banning male cosplayers from dressing up as female characters.
The Tokyo Comic-Con, Japan’s own version of Comic-Con, has now posted its cosplay guidelines, and it has generated some controversy.
In other words, no traps allowed at the Tokyo Comic-Con.
While the rule hasn’t raised much eyebrows in Japan, it has in the rest of the world.