If you extracted the story from Ice Age: Dawn of the Dinosaurs
out of the game, you'd wonder what kind of person, even what kind of kid would subject themselves to 94 minutes of a movie about the same thing. The story told by Sid goes something like this: Buck loved danger (cut to entire level of gameplay), one time Buck faced a terrible monster (cut to entire level of gameplay), and Buck was a crazy guy (cut to entire level of gameplay). Yep, you got it. Mindless movie tie-in is the name of this game.
There are some parts of the game that could be considered cute. The squirrel, Scrat, will make an appearance whenever you discover an acorn. He usually ends up being squashed by a dinosaur foot or otherwise abused by some chance falling rock or other slip up, but again, with the graphics in this game, it's difficult to make out much of this slapstick humor. If there were silly expressions or something else happening, you would have no way of knowing.
Most of the game consists of Buck's platforming adventures where he fights everything from caterpillars to deadly spike-shooting plants. Between these levels, however, you'll occasionally have to complete one of Sid's mini-games. You'll have to keep his adopted brood of T-Rex babies sleeping soundly by fighting off other noisy dinosaurs. You'll slingshot projectiles at dinosaurs by pulling back on Sid's head. This is rather enjoyable until the added element of trying to "shhhh" the babies back to sleep is added in. You have to tap on a waking baby T-Rex and say "shhhh" into the microphone. But the game apparently wants a "shhhh" so loud and long that it would wake the dead, so it gets to be very aggravating very fast.