Just saw it and did it myself... awesome.
![Very Happy :D](./images/smilies/icon_e_biggrin.gif)
Then I did a little experiment with the glitch, and found that you can do a similar thing on Pot Hole Panic.
At the part where you jump off Ellie to get into a barrel, do the same thing as on the video (except on the higher ledge), and you should be able to jump on Kiddy and then jump into the barrel. Then you can go through the rest of the level with Ellie.
![Smile :)](./images/smilies/icon_e_smile.gif)