"First mistake: Never tell Galasso what to do. Second mistake: Never presume a man does not have ninjas at his disposal."
— Galasso, Shortpacked!, to an armed gunman
Roy: "There were no ninjas in Rumplestiltskin!"
Orson and Wade: "There are now!"
— U.S. Acres, "The Name Game"
Ethan: We haven't seen Rick in weeks.
Ninja Rick: That is because all ninja master the dark art of invisibility.
Robin: Being alone in your apartment and catching up on Naruto doesn't cut it, Rick.
"What a terrible world we live in where ninjutsu can't solve all our problems..."
"As of the 2009 movie, Sulu's totally a ninja. You just can't get cooler than ninja."
Hide in shadows and darkness. Use ninja skills on your mission. You're a ninja! A NINJA! Cool...
— Ninja Kirby's flavor text, Kirby Super Star Ultra
"Whoa. Kamikaze? I'm more like a ninja!"
— Dean Winchester, Supernatural
"I'm Live Wire; this is one sassy ninja you don't wanna tangle with!"
— Laney Penn, Grojband, "Super Zeroes"