Frogs and Dolls!

The story begins with Natsumi inviting Koyuki to spend Hinamatsuri, the Japanese Girls' Festival, at the Hinata household. Keroro intervenes once again, hoping to 'spice up' the traditional festival in his own way, and Kururu unveils his newest invention - Kururuko, a magical girl style Pekopon suit, its perfect human likeness spoiled by Kururu's attempt at a girly voice from inside it. Kururuko then proceeds to send the humans into a holographic realm, introducing them to Hinamatsuri, Outer Space style.
Debuting in this episode is Dance Man, the white-suited afro-coifed singer of the Afro Gunso closing theme... and Dasonu Maso, his alien bootleg version. The story begins when Keroro tricks Natsumi with what appears to be a Dance Man concert ticket, but ripping off the counterfoil summons Dasonu Maso from deep space, and Natsumi is subjected to the truths of Dasonu Maso as well as the threat of her very own afro....