Sergeant Keroro Chibi Kero: Secret of the Kero Ball!?

Sergeant Keroro Chibi Kero: Secret of the Kero Ball!? (2007)

ちびケロ ケロボールの秘密!?

Tells of the adventures of a young Keroro and Giroro back on Keron when they get trapped inside a prototype Kero ball.

Date of release
2007-03-17
Director
Nobuhiro Kondo, Susumu Yamaguchi

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