How is This Possible?

hey there, yesterday trying to help someone with a MC, i found a movie on flashkit, then i went inside the movie trying to find out how it works but i don’t have any idea about it.

Can someone explain me how this movie works? (and if you can be very specific i would really appreciate it)

Thanks.

http://www.kirupa.com/forum/attachment.php?attachmentid=8381