Eggheads (Europe) (Japanese title: ハッピー！イッパツだいすき！) is a puzzle game developed by Nintendo for the Nintendo DS. The game follows the adventures of a group of egg-shaped characters, known as the Eggheads, who are on a mission to save their beloved egg-shaped world from the clutches of an evil, egg-hating monster. The game is an action-puzzle hybrid, requiring players to use their egg-shaped heroes to battle against the evil forces. Players must use a combination of strategy and reflexes to progress through the game. Each level contains a variety of puzzles to solve, ranging from simple matching puzzles to more complex logic puzzles. In addition, players must use their Eggheads to battle against the evil forces, using special abilities to defeat enemies and progress further. The game also features a unique multiplayer mode, allowing up to four players to battle against each other using their Eggheads. Players can customize their Eggheads with a variety of hats and accessories, as well as compete against each other in a variety of mini-games. Eggheads (Europe) is a fun and challenging puzzle game that is sure to provide hours of entertainment for all ages. With its unique and engaging gameplay, Eggheads is sure to be a hit with puzzle fans everywhere.