They unloaded their firearms in the room, defeating most those gathered much to Shiki's dismay, then split up to defeat the rest.
It was implied that she may have gotten into some kind of confrontation while gathering information, and used her powers to end the scuffle.
She was also nominated for six Primetime Emmy Awards.
This was Luffy's way of showing Robin that he and the Straw Hats would never abandon her, if the World Government was her enemy, then they were the Straw Hats' enemy too.
Robin then tried to help out in a shop, but the owner whacked her with a stick in anger, telling her that she was not allowed in.
This simpler design also implies a simpler character.