The Puppy Linux 528JP (July 2012) is updated version based on the Lucid Puppy Linux 5.2.8.005 plus Japanese language support. Also Pmusic_Upgrade-Lucid528-005.pet. Differences with the original are described on its homepage. Project created by Shinobar.

Pupp528JP (lupu folder)
Pupp528JP thread

Precise550JP
Puppy 5 Index
Japanese Language
SCIM

Puppy 528 homepage