Turning effect

Take a look at this movie I extracted from a site. For those who have ever watched those XiaoXiao animations(http://www.xiaoxiaomovie.com/movie/movie03.htm), you will know that they are in 2D. But if you look at the one below that I extracted from one of his animations, it looked like turning camera effect of 3Ds when it is actually in 2D. I was wondering how did he manage to do this sort of “Matrix”-like effect in flash?
Click here for the extracted part

another example of turning vectors I just found at flashkit…
check out this http://www.flashkit.com/movies/Anim...m-891/index.php
its like how did they actually turn a vector image? do they drawing every frame every step again and again? if they do, thats hard and it wont look as good. i downloaded the .fla file to take a look and i see no tweening…everything is frame by frame and so i can’t get the idea how they made it…