A young Keroro wants to impress Pururu, so he shows off the Kero Ball-a ball Giroro borrowed from his brother, Garuru. While testing its buttons, he accidentally traps four tadpoles inside, forcing them to navigate a pinball maze to escape. Outside, a blue tadpole named Kururu finds the ball and hears their cries for help. He agrees to free them in exchange for a plate of curry rice. True to their deal, the Kero Ball produces the meal-but the plate keeps growing uncontrollably until Kururu is completely submerged in curry. The yellow curry begins to change him, turning the blue tadpole into the "yellow devil." As the screen fades to black, his eerie "Kukuku" laugh echoes in the darkness.

Sgt. Frog - S02
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Overview:
A young Keroro wants to impress Pururu, so he shows off the Kero Ball-a ball Giroro borrowed from his brother, Garuru. While testing its buttons, he accidentally traps four tadpoles inside, forcing them to navigate a pinball maze to escape. Outside, a blue tadpole named Kururu finds the ball and hears their cries for help. He agrees to free them in exchange for a plate of curry rice. True to their deal, the Kero Ball produces the meal-but the plate keeps growing uncontrollably until Kururu is completely submerged in curry. The yellow curry begins to change him, turning the blue tadpole into the "yellow devil." As the screen fades to black, his eerie "Kukuku" laugh echoes in the darkness.
Aired:Apr 01, 2005
Duration:25m
Episodes:358
Networks:TV Tokyo
Country: Japan
Episodes (52)
1. Keroro Standing on Earth Once Again! / Tamama, Black Tamama2. Keroro: Operation Invade the Treasure / Angol Mois: More More Cherry Blossom Viewing3. Fuyuki: I'm a Master Detective? / Dororo: Warrior Returned4. Giroro: The Soldier Back in Action / Fuyuki: Swim, Carp Streamers5. Natsumi & Koyuki: Princess of Tennis / Keroro: A Fine May Day, Perfect for Invading6. Dororo: The Counterattack is Mine / Giant Frog vs. Great Monsters of the South Seas7. Keroro Invades with Vending Machines / Tamama's Awakening! A New Lethal Technique8. Keroro: Grow Up, Great Castle / Keroro's Moving Castle9. Keroro: Froggy Races / Mois: Sleeping Beauty, Or, Like, Slumber Desired?10. Fuyuki: What Happened to the Mystery Transfer Girl? / Natsumi & Saburo: A Couple at the Point of No Return11. Momoka & Natsumi & Mois: Master Thief More Peach Summer / Keroro: Certain Victory! Big Underwater Showdown12. Keroro's Gero-gero Teacher Story / Keroro: We Meet Again, Father13. Keroro: If You're Going to Suck, Suck Away! Just Kidding, Please Don't / Dororo Escapes His Trauma14. Keroro Howls at the Pekopon / Tamama: A Visitor from Planet Keron15. Giroro's Grand Rescue Operation of Love / Natsumi & Koyuki's Heart-Pounding First Date16. Fuyuki & Momoka's Secret Mystery Date / Keroro: Come On, Let's Make a Video Game17. Keroro's Extreme Makeover: Dramatic Renovations Edition / Dororo: Here I Come! Fateful Showdown18. Natsumi & Fuyuki Get Spirited Away / Keroro: A Time-Honored Tradition! Midsummer Comedy Battle19. Keronians vs Pekoponians: An All-Out Showdown At Last? / Koyuki's Heart-Pounding First Rice Ball20. Atrocious, Annoying Legend of the Universe's King of Forgetting Homework21. Keroro's Iron Chef Challenge / Tamama's Most Powerful Warrior Challenge22. Fuyuki: 198X — Our Summer Break23. A Special Show That'll Blow Your Mind: 30 Minutes of Gerogero24. Momoka's Awakening! The Third Momoka25. The Keroro Platoon: Fly Me to the Moon26. Tamama: Is It True That You're Getting Married? / Tamama Swears Off the Tamama Impact27. Keroro: Treasure Hunting Has Got to Be on a Treasure Island28. Fuyuki Won't Give Up On Sports Day / Giroro: The Cat Knows29. Keroro: Wow, Running Away from Home Is... Really Lonely, Isn't It?30. Giroro: Bright Red, Gritty Days? / Koyuki Fights to Protect the Person Who's Important to Her31. 623: Wanna Be on My Radio Show? / Keroro vs. Natsumi: 1/6 Earnest Battle32. Keroro: The Mixed Open Air Hot Spring Murder Case33. Momoka: Let's Have Lunch in Space / Keroro Hunts Matsutakes34. Keroro: Turn it, Clack, and Turn Into Each Other / Natsumi: If I Could Be a Magical Girl35. Natsumi & Fuyuki: The Hinata House, Where Devils Dwell / Keroro Becomes a Superhero36. Keroro: Celebrate! Happy Birthday / Mois in Wonderland37. Dasonu☆Maso: Pekopon is Mine! But I'll Come Straight Out, I Don't Even Want It38. Giroro: The Man with Seven Faces / Fuyuki: Let's Join the Occult Tournament39. Keroro: I Couldn't Say Merry Christmas40. Keroro: New Year, Reborn! The Neo Keroro / Koyuki: Here Comes Grandma41. Keroro Platoon: From the Sky With Love / Momoka vs. Mois: Clashing Battledore Battle42. Natsumi Infiltrates the Secret Base / Hinata Aki: Maybe the Strongest Woman in the Universe43. Karara & Taruru: Let's Take Pekopon44. Natsumi: Giroro Falls? The Do-Or-Die Rescue Operation45. More Peach Summer Snow: Valentine Showdown / Keroro: Tales of the Unfortunate46. Momoka: Spelling "Powerful Rival" as "F-R-I-E-N-D" / Keroro & Fuyuki: Together47. Momoka: Operation Elopment / Dororo & Koyuki: Memories of Meeting48. Natsumi: Famous Dog Natchi / Keroro: Keropper49. Keroro: Huh? Who Am I? Who Are You?50. Keroro Platoon: The Day Pekopon Stood Still?!51. Keroro Platoon: Pekopon! A Dying Planet Of Love52. Keroro Platoon: One More Final: I Need You
Characters & Voice Actors

CharacterSGT Frog
Voice ActorKumiko Watanabe














