Keroppi & Keroleen's Splash Bomb! is an action game developed by Geo Factory and published by Character Soft, released for the Nintendo Entertainment System (NES) in Japan on December 1, 1993. Players control Sanrio's beloved Keroppi, using water balloons to defeat enemies and clear obstacles. Gameplay is similar to the classic Bomberman series, but replaces bombs with water balloons. The goal is to throw water balloons to eliminate enemies and obstacles, then reach the exit to advance. Be careful—water balloon blasts can hit Keroppi himself, so players must plan moves carefully to avoid self-damage. With cute character designs and fun mechanics, it became a beloved NES action title.