An escalator would allow the 3 penguins to travel to the top of the slide, whereupon they would slide all the way down to the bottom of the escalator, and then travel to the top of the slide, whereupon they would slide all the way down to the bottom of the escalator, and then - you get the idea?
The annoying bit was the continuous high-pitched squeaking sound that went on while all this sliding and escalating was happening. My brother had bought one for himself (why? he was quite grown up, - at least in years) and almost immediately removed the squeaking-noise-making-bit. I'm not surprised.
Oh my goodness gracious me! You can still get it! Be very grateful that you can't hear it. But, if you want to torture your ears, (and your eyes, but the video operator will calm down fairly soon ) click on this link http://www.youtube.com/watch?v=ydDuM1RsZFQ
Now, I know this post is titled "Cute Little Ducklings", and here they are, and that's what made me think of the penguins. (Video via http://johnthelutheran.tumblr.com/)