When Speedy is playing Ping Pong against Bad Bird, he's wearing a robe and so are all the other Pizza Cats. Then when the cats get into a scuffle with the Ninja Crows; the cats are in their uniforms. There's no way they could have changed into their uniforms that fast when their uniforms are not in their possession.
When Momma Mutt starts to fire the cannon to launch the Pizza Cats and Francine, the gun on the control panel is red. It's normally silver with a brown handle.