If you want this then its the boot animation for you.
Since most of the bootanimations today for SGY are customized, be sure to follow the instructions so that this will install successfully on your phone.
Really nice effects!
1.Download the bootanimation
2.Move it to sd card
3.Use Root Explorer or any app which gives Root Permissions
4.Mount as r/w
5.Then move it to system/media
6.Reboot and Enjoy