- Casey Jones: You boys picked the wrong night!
- Fong: Nice outfit... Pfft, who's this clown?
- Casey Jones: I'm the last guy you'll see before you wake up in the hospital.
- April O'Neil: Well, well... Casey Jones finally makes it to class. What a surprise. You ready for the big trig exam?
- Casey Jones: Trig exam? Oh, yeah... I was up all night... studying...
- April O'Neil: Really... Did your homework punch you in the face?
- Raphael: I thought I had my anger under control. Turns out, I didn't. But now, I do. Seriously!
- Michelangelo: He means 'for now'. I'll give him ten more seconds... Nine... Eight... Sevan...
- Leonardo: What are you saying, Raph? It's not that you ARE angry, but we MAKE you angry?
- Raphael: I never said that!
- Michelangelo: Three... Two... One...
- Raphael: SHUT UP!
- Michelangelo: Bing bing bing! We have a winner!
- Raphael: You're the one who did this!
- Casey Jones: They were following you too, dude!
- Raphael: Don't 'dude' me, dude!
- Casey Jones: Another mutant?
- Raphael: You got a problem with that?
- Casey Jones: Wait, what are you, like, some kinda turtle ninja?
- [Raph viciously injures Leo in a sparring session]
- Raphael: I... I didn't mean to hurt him! It was an accident! Seriously!
- Leonardo: [dazed] Did you guys get the number of that bus?
- Splinter: We have spoken about this time and again, Raphael. Anger is a dangerous ally. It clouds your judgment. You need to control it, lest it controls you.
- Raphael: But Sensei, I wasn't angry! I was just... determined to win!
- Raphael: You're a pretty good fighter, Jones. Sure, you're raw, unfocused, CRAZY... But not bad.
- Casey Jones: You're not too bad yourself... For an amphibian.
- Casey Jones: Mutant monsters and robot ninjas are taking over my city. How long before those freaks hurt somebody close to me? Like my dad, my little sister, April... Well, I'm not waitin' around to find out. All my life I knew I was meant for something greater. THIS is my call. My destiny. A true warrior's gotta be prepared. Hm... Who do you...? Who do you think you are? A ninja? Bring it, punk! Scum-sucking, mutated freaks of the world, prepare to meet... Casey Jones!