yay! avoision found the first video from SamBakZa. This one is titled "There She Is". It tells the story of how the cat and rabbit met, which is continued in The Cake Dance.
(on the sambakza site click on the Korean words on the top of the page. To get to the videos)
Also it is interesting to note that avoision used the same frame of the Cake Dance as I did to post about it. But they are different pics, i checked. So, he took his own screen capture, but it happened to be on the same frame that I used for mine.