- Yusuke Urameshi: [laughing hysterically as he stands before the toddler who runs the universe] And to think I was scared of the mighty King Yama.
- Koenma: Well, to be more exact, I am the mighty Koenma, and I am the son of King Yama. Even though I appear to be a child, I've been around over fifty times longer than you have, so watch your mouth when you speak to me.
- Yusuke Urameshi: [still laughing] So it takes hundreds of years to move past a diaper.
- Botan: [punching Yusuke over the head] Can't you show an ounce of decency?
- Koenma: Actually I'm proud to say that in addition to knowing the greatest secrets of the universe I am also quite potty trained. Now let's skip to the business, shall we?
- Botan: Human beings are more attuned to the supernatural when they're asleep, and so ghosts can talk to people in their dreams.
- Yusuke Urameshi: Well, I'll be darned.
- Yusuke Urameshi: Boton, is there any other way to communicate with living people? This dream business isn't gonna cut it.
- Kazuma Kuwabara: [on his ability to sense ghosts] I've had "the tickle" ever since kindergarten. Voices chase me home at night. Scary old women whisper things to me in my dreams. Well... sometimes they're nice; usually there're not. I think it's 'cause they know I'm kind of a natural leader.
- Yusuke Urameshi: [observing as a spirit] That's a surprise. That goof actually has a purpose?
- Yusuke Urameshi: [after a failed attempt to convince others he's inside Kuwabara] That could have been better. We should have special passwords for times like this.
- Yusuke Urameshi: [at the prospect of possessing Kuwabara] You can forget it, Boton. There is no way I am taking control of that lame brain.
- Botan: [gleefully reminding him of the threat of cremation] Here's my impression of Yusuke: "Look at me. I'm burning. Ah ha ha ha."
- Kayko Yukimura: Atsuko, I have to tell you about Yusuke. He... he might be coming back.
- Atsuko Urameshi: He already has.
- Kayko Yukimura: Huh?
- Atsuko Urameshi: I opened up his coffin again because - well, I was gonna smack him one more time for leaving me - but then I saw Yusuke's cheeks have some color, and his skin is slightly warm. His heart is beating. It's slow but... my boy's alive.