- Night Club Manager: What'd you say the name of your band was called?
- Glam, Vinnie: Mondo Diarrhea.
- Slam: Alien Vomit.
- Grandpa: The hospital is fine except for this wicked nurse. She's got the face of a dragon's butt.
- Nurse Hino: [Lifts up his leg too high causing Him to shout in pain] Some People here do understand English, Mr. Shintaro!
- [Slam mistakes a letter opener as the dagger]
- Vinnie: Did you hatch from a moron egg? Does that look like this?
- Grandpa Mori Shintaro: Before you go to Japan, you will be tested on the field of battle. Remember, four strands of rope, apart you can snap, but together you can be strong, now get out there and kick butt!
- Jeffrey 'Colt' Douglas: [a Ninja whips out a cell phone instead of his sword] What are you gonna do, talk us to death?
- Grandpa: [after a home alone like battle with three dumb bad guys, when the trio was going to prepare dinner] What happened, I thought You said You were gonna have Dinner ready, what is this mess?
- Samuel 'Rocky' Douglas Jr., Jeffrey 'Colt' Douglas, Tum Tum: These three Guys came, they wanted to rob the Place!
- Grandpa: What could they want to rob?
- Samuel 'Rocky' Douglas Jr.: VCR's and stuff, we heard them talking.
- Tum Tum: Yeah, but they finally gave up and ran away!
- Jeffrey 'Colt' Douglas: We did everything You taught us, we were great!
- Grandpa: A true Ninja, never brags about His skill, next time this happens... call the Police.
- Vinnie: What are you guys, Teenage Mutant wannabes?
- Samuel 'Rocky' Douglas Jr.: Not!
- [swings down from tree and knocks them down]
- Tum Tum, Jeffrey 'Colt' Douglas, Samuel 'Rocky' Douglas Jr.: We're the 3 Ninjas! Yah!
- Slam: Let's get outta here while we're still standing.
- Vinnie: I'm with that, brother. Out of my way, Slam, I'm outta here!
- Glam: [Slam and Vinnie run] I'm working with idiots.
- Umpire: [Angry, and spits after witnessing a fight break out during the baseball match] This is the most disgraceful display I have ever seen in baseball history. Your supposed to be learning how to be Citizens, and Sportsmen, NOT Hooligans! I am suspending this game for one week to give you a chance to cool down. The game starts over next Sunday, and that is if by then and if you decide to GROW UP!
- Announcer: [after announcing Gerald Thomas in the Baseball Game who just scarfed down a small can of Chili] This Kid doesn't come alive very often... but when He does; He REALLY let's go!