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Season guide

Sgt. Frog: Season 6

51 episodes Premiered Apr 1, 2009 Updated Sep 25, 2026

Previously on Sgt. Frog

Season 6 Lore Primer

Key plot threads, lore context, and character stakes you need to remember before diving into this season.

⚡ Directly follows the overarching narrative developments of Sgt. Frog Season 5.
⚡ Faction dynamics and core character alliances shift under escalating external stakes.
⚡ Crucial mysteries introduced previously reach key turning points and narrative reckonings.
⚡ Sets up serialized story arcs that build directly toward the climactic season finale.

Season 6 Episodes

Episode Guide

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Season 6 Progress Shield

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Binge Efficiency Engine

Season 6: Filler vs. Essential Canon

Filter episodes by narrative weight. Focus on essential mytharc and skip standalone side quests.

96%

Mytharc (2): Crucial lore & season climaxes

Core (49): Character development & subplots

Side Quest (0): Standalone / filler

S6·E257 Core

Keroro, First Encounter Revisited!

Apr 1, 2009 · 25 min

S6·E258 Core

Keroro, Negative Thinking of Terror / Keroro, Grilled Meat Without Dignity

Apr 8, 2009 · 25 min

S6·E259 Core

Koyuki, Cherry Blossom Trouble!

Apr 15, 2009 · 25 min

S6·E260 Core

Kero Zero, Keroro Platoon`s Departure Last Night Kero Zero / Keroro Platoon`s First Mission

Apr 22, 2009 · 25 min

S6·E261 Core

Momoka, The Big Seat Change Plan Kogoro / My Feelings!

Apr 29, 2009 · 25 min

S6·E262 Core

Bariri, Loving Chief Medic/Keroro, Mother Looking Up In the Sky

May 6, 2009 · 25 min

S6·E263 Core

Keroro, Weevil That Grants Dreams/Keroro, Do Your Best, Trash Bag!

May 13, 2009 · 25 min

S6·E264 Core

Keroro, the Space Digital Monster Attacks!/Keroro, Transform

May 20, 2009 · 25 min

S6·E265 Core

Giroro, Remote-Controlled Date/Keroro, Pu's Doubts

May 27, 2009 · 25 min

S6·E266 Core

Tamama, That Wake-Up Kiss is Mine/Pururu, Revealed Secret?!

Jun 3, 2009 · 25 min

S6·E267 Core

Keroro, Big Air Anything Operation/Keroro, Motel

Jun 10, 2009 · 25 min

S6·E268 Core

Kero Zero, Enter Pekoponian Mecha Designer Kiko Katoyama

Jun 17, 2009 · 25 min

S6·E269 Core

Momoka, Big Head Over Heels Operation/Giroro, Escape From Natsumi!

Jun 24, 2009 · 25 min

S6·E270 Core

Chibi Kero vs. Chibi Fuyuki

Jul 1, 2009 · 25 min

S6·E271 Core

Tamama, It's Hard Being an Upperclassman/Natsumi, We're All Boys!

Jul 8, 2009 · 25 min

S6·E272 Core

Wettle King versus Kogoro/Three Weirdos, Smallest Showdown on Pekopon

Jul 15, 2009 · 25 min

S6·E273 Core

Keroro, Training is OK/Koyuki, Confrontation! Midsummer's Shore

Jul 22, 2009 · 25 min

S6·E274 Core

Keroro Platoon, Under Keroro!

Jul 29, 2009 · 25 min

S6·E275 Core

Keroro, Keron-Style Golf/Keroro, Run Keroro

Aug 5, 2009 · 25 min

S6·E276 Core

Keroro, The Admiral Attacks!/Giroro, It's This Zipper

Aug 12, 2009 · 25 min

S6·E277 Core

Kero Zero, Space Catering/Kero Zero, Formula for Eating

Aug 19, 2009 · 25 min

S6·E278 Core

Ghost Girl, Before-After/Giroro, the Red Fairy

Aug 26, 2009 · 25 min

S6·E279 Core

Alisa's First Time with Mama!?

Sep 2, 2009 · 25 min

S6·E280 Core

Keroro & Natsumi, Ruthless Stamp Card/Keroro, Sad Kerobot

Sep 9, 2009 · 25 min

S6·E281 Core

Keroro, Cicada Platoon/Keroro, Ribbit Day

Sep 16, 2009 · 25 min

S6·E282 Core

Momoka, Sudden Dance of Flames/Kero Zero, All Quiet on the Fig Front

Sep 23, 2009 · 25 min

S6·E283 Core

Keroro, 5 Shocked Keronians/Fuyuki, Planet of the Humans

Sep 30, 2009 · 25 min

S6·E284 Core

Dororo, Farewell Platoon

Oct 7, 2009 · 25 min

S6·E285 Core

Aki, Earth's Front Line of Defense/Natsumi, Tension! Parent's Classroom Visit

Oct 14, 2009 · 25 min

S6·E286 Core

Keroro, Careless Saturated Operation!/Keroro, Invasion! Softglon of Terror

Oct 21, 2009 · 25 min

S6·E287 Core

Natsumi, Stop Those Hiccups～/Kero Zero, The one waiting on the Training Planet

Oct 28, 2009 · 25 min

S6·E288 Core

Keroro, Kappa Legend/Keroro, Welcome Back

Nov 4, 2009 · 25 min

S6·E289 Core

Giroro, Red Devil of the Battlefield/Keroro, Is That Really a Lie?

Nov 11, 2009 · 25 min

S6·E290 Core

Poyon, Miracle Paul Operation!/Kero Zero, Snow is a Merciless Queen of the Night

Nov 18, 2009 · 25 min

S6·E291 Core

Alisa & Nevula, First Hot Spring/Keroro Platoon, Struggle! Torinoichi

Nov 25, 2009 · 25 min

S6·E292 Core

Natsumi, Secret of the Dresser/Keroro, You Were in my Dream

Dec 2, 2009 · 25 min

S6·E293 Core

Again Gero Gero 30 Minutes

Dec 9, 2009 · 25 min

S6·E294 Core

Yoshiokadaira, Bodyguard Elegy/Natsumi, Christmas Party Operation

Dec 16, 2009 · 25 min

S6·E295 Core

Keroro, The Two of Us Are One Kerororm/Keroro, Mysterious Ultimate Weapon

Dec 23, 2009 · 25 min

S6·E296 Core

Keroro, New Year's Lucky Haste/Keroro, This Year Is Keron Year!

Dec 30, 2009 · 25 min

S6·E297 Core

Keroro, Just One Chance/Dangale Lands

Jan 6, 2010 · 25 min

S6·E298 Core

Mois, Goodbye Pekopon/Saburo, The Mysterious Boy

Jan 13, 2010 · 25 min

S6·E299 Core

Giroro, Take Down G-Force!/Giroro, G-Force's Counterattack

Jan 20, 2010 · 25 min

S6·E300 Core

Onono, Illusionary Keron Soldie

Jan 27, 2010 · 25 min

S6·E301 Core

Tamama, Kicked Out Of The Nishizawa Family?/Momoka, Chocolate Cake of Love and Sadness

Feb 3, 2010 · 25 min

S6·E302 Core

Keroro, I'm A Director!/Keroro & Fuyuki, Small Adventure In a Big City

Feb 10, 2010 · 25 min

S6·E303 Core

Kero Zero, My Home is Pekopon

Feb 17, 2010 · 25 min

S6·E304 Core

Keroro, Please Give Me That Back!

Feb 24, 2010 · 25 min

S6·E305 Core

Nobibi Came!

Mar 3, 2010 · 25 min

S6·E306 Mytharc

Shugo Kero, Dokki Doki Party!/Dororo, Doro is Coming!

Mar 10, 2010 · 25 min

S6·E307 Mytharc

Keroro & Fuyuki, Night of the Time Capsule

Mar 17, 2010 · 25 min