Shaggy: Can you believe it Scoob? My ears are ringing again.
Scooby: (deadpan voice) It's your phone.
Del: Gee Minga, what you did is so romantic. In a kind of twisted way. Which I like.
Del: A flying Abominable Snowman? My mind is blown.
(about the avalanche)
Shaggy: Let's shred this mountain before it shreds us!
(after Professor Jeffreys professes the treasure is "lost no more")
Shaggy: You can have it! And what a deal! It comes with a matching snowman!
(Scooby is licking Fred's face in happiness. Velma looks at Shaggy, who is in her arms)
Velma: Don't even think about it.
(she drops Shaggy)
Shaggy: We've gotta find some place to hide from the bipolar polar bear!
(looking at paintings and thinks the Abominable Snowman is a painting)
Shaggy: Now this guy's the ugliest of them all.
Fred: Daphne, you and I will head over to the weather station.
Daphne: No thanks Freddie. I'm going with Pimba.
Fred: Okay, that's - huh?
Daphne: You can pair up with Velma this time.
Velma: Lucky me.
The gang doesn't unite until about 2/3's of the way through the movie.