Kero! and March (Platoon Version) (ケロッ!とマーチ(小隊Ver.) Kero-! to Māchi (Shoutai Ver.)) is the 9th track in the soundtrack, Keroro Song, Everybody Enter de arimasu! 2, of the anime Keroro Gunso.
It is also the 10th opening theme song (first in its sixth season) of the anime Keroro Gunso, from episode 257.
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