Sgt. Frog 52-103 Giroro: Bright Red, Gritty Days, Sir!\NKoyuki Fights to Protect the Person Who's Important to Her, Sir! - Watch on Crunchyroll

Season 1, Keroro Wiki

Sgt. Frog 52-103 Keroro Standing on Earth Once Again! / Tamama, Black Tamama - Watch on Crunchyroll

Sgt. Frog 52-103 Fuyuki Won't Give Up On Sports Day, Sir! / Giroro: The Cat Knows, Sir! - Watch on Crunchyroll

Sgt. Frog 206-256 Keroro Platoon: The Colorful Plan Begins, Sir! / Dororo: Do You Like Natto, Sir? - Watch on Crunchyroll

Giroro (Sgt. Frog Character), The Parody Wiki

Sgt. Frog 52-103 Atrocious, Annoying Legend of the Universe's King of Forgetting Homework, Sir! - Watch on Crunchyroll

Sgt. Frog 52-103 Dororo: The Counterattack is Mine, Sir! / Giant Frog vs. Great Monsters of the South Seas, Sir! - Watch on Crunchyroll

Sgt. Frog 104-154 Chiruyo: Check on White Day, Sir! / Fuyuki: Additional Fees May Apply, Sir! - Watch on Crunchyroll

Sgt. Frog 155-205 Keroro: Nyororo Extinction, Sir? / Lavie's Going to Get Married, Sir! - Watch on Crunchyroll

Sgt. Frog 1-51 Natsumi: Preserve Girls' Day, Sir! / Keroro: It's an Afro, Myoww, Sir! - Watch on Crunchyroll

Sgt. Frog 257-307 Giroro: Red Demon of the Battlefield, Sir! / Keroro: Is That Lie True, Sir? - Watch on Crunchyroll

Sgt. Frog 52-103 Keroro's Gero-gero Teacher Story, Sir! / Keroro: We Meet Again, Father, Sir! - Watch on Crunchyroll

Sgt. Frog 52-103 Natsumi: Giroro Falls? The Do-Or-Die Rescue Operation, Sir! - Watch on Crunchyroll

Sgt. Frog 257-307 Keroro: The Wish-Granting Weevil, Sir! / Keroro: Go For It, Trash Bag, Sir! - Watch on Crunchyroll