Alleyway, one of the original Game Boy launch titles and one of Nintendo’s earliest attempts to give a simple brick-breaker game its own identity. What makes it especially memorable is its connection to the Mario universe: the player’s paddle is styled as Mario’s spaceship, and the bonus stages form character shapes from the Mario series. For collectors, it stands out as a foundational 1989 release that captures the stripped-down, experimental spirit of the Game Boy’s first generation.