I mod it a bit to make it more suitable for our devices!!
Docomo logo and water-proof picture are removed.
1.Download bootanimation.zip for 480P or bootanimation_P.zip for 540P devices!!
UPDATE:bootanimation_1080.zip for 1080P devices!!
2014/1/15 UPDATE:Here for 720P devices!!
Please rename the zip to bootanimation.zip first!!
2.Replace the original bootanimation.zip in /system/media
3.Set permissions to rw-r-r
Then you're done!!Reboot and enjoy the beautiful animation!!
New:Here is another version for 1080P with Miku looping until booted!!
All credits to rer3 !!
Vocaloid wallpapers from Xperia Blog:Download