Funnist moment.

[FreckledOne]

I still laugh at the "tar monster" scene. And Cera's doing all these well-timed pratfalls. Classic slapstick!

One of the funniest moments for me is right after that part, when Cera stalks off sticking her tongue out, and promptly runs into a stalactite (or stalagmite?), with her tongue still sticking out.  

[Dalekdino]

For me it was the getting green food scene. Littlefoot telling Spike not to lift them up too fast and what do you know, he lifts them up too fast, and Petrie's silly grunts as he picks the leafs off. I was laughing just as much as Cera when I saw it as a kid.  

[Barroth the Blue Mage]

Littlefoot: "Nope. Nope. Nope. I'm not a carrier. Get off!"

Petrie: "Yai yai."

Littlefoot: "You're a flyer. Now, start flying."

Petrie: "But, but..." *Screaming*

Ducky: "Open your wings, Petrie! Open! Open!"

Petrie: "No! No! No, can't do this!"

Littlefoot: "You can fly! Now open your skinny wings!"

Ducky: "Up, Petrie! Higher! Higher like a flyer!"

Petrie: "DANGER!"

Ducky: "Where, Petrie?"

Petrie: "Th-th-th-the-there! Ahead!"

Littlefoot, Ducky and Petrie: "Whoa!"

And they bumped against a dino skeleton and it stick itself onto Littlefoot's body.

 

[Bruton the Iguanodon]

"I smell...I smell...Ducky."

Naturally, that has to be one of, if not the most funny ones, for me.

[Cancerian Tiger]

^

Annnnd her reaction: "You smellll me?!" followed by giggling .