Aliens - Infestation (Europe) (En, Fr, De) (日本語タイトル: エイリアンズインフェステーション) is a side-scrolling action-adventure game developed by WayForward Technologies for the Nintendo DS. Players take control of a team of marines as they explore a derelict spaceship, the U.S.S. Sulaco, which has been overrun by alien creatures. The objective is to locate survivors and uncover the mystery of the Sulaco. Along the way, players must battle waves of aliens and solve puzzles in order to progress. The game features a unique art style that pays homage to classic science fiction films. The game also features an emphasis on survival, as the player's team of marines can only carry a limited number of weapons and items at any given time. As they progress, they must choose which items to keep and which to discard in order to survive. The game also features a unique 'morale' system, which affects the behavior of the marines. The more the player's team succeeds, the more morale they have, allowing them to take on tougher enemies. Aliens - Infestation (Europe) (En, Fr, De) is an intense, action-packed adventure game that pays homage to classic science fiction films. With its unique art style, emphasis on survival, and morale system, it offers a unique and challenging experience for Nintendo DS owners.