A premise this dumb, four tadpoles trapped in a magic ball, negotiating their freedom for curry rice, only works because everyone commits to it completely. The joke isn't that it's absurd; the joke is that a plate of rice becomes the most serious transaction in the entire narrative. If you've ever watched Keroro and wondered what would happen if the show stopped pretending to have stakes, here's your answer.
Young Keroro wants to impress Pururu by showing off the Kero Ball, a borrowed gadget from the planet Keron. When he carelessly presses its buttons, four tadpoles are pulled inside and trapped in a pinball maze. Their only way out is to win the game. Outside, a blue tadpole named Kururu finds the ball and hears desperate pleas for help. He strikes a bargain: he will free the prisoners in exchange for a plate of curry rice. The deal works, but not quite as expected. The curry keeps growing bigger and bigger until poor Kururu is swallowed up in a sea of yellow. What starts as a simple rescue spirals into slapstick chaos in this short, fully 3D CGI comedy special, shown alongside the second Keroro Gunsou feature film.