Does anyone has an idea of how to do something like this but at the inverse?

https://www.youtube.com/watch?v=zrhXB653wKg [www.youtube.com]

Any idea would be awesome!

At the end I made it work backwards, just reverse all the animation, with a timewrap SOP, and think everything that way, after that I added some more particles to go along side with the FX and made it look better!