They're so different from Gensomaden. I was weirded out by how mature Goku acted. And how he whacked Sanzo with his pillow. I'm surprised he didn't end up with a bullet between his eyes.
And Hakkai's classic line: "We're not retarded Sanzo"
Sanzo's reply: "God Hakkai, it's called irony"
And Goku: "It tickles!"