How a 1991 Game Boy title permanently reshaped the iconic Metroid series

Cultures · Published 10 October 2026 Swipe more like this →

In short: Released for the Game Boy in 1991, Metroid II: Return of Samus was a technical experiment that introduced essential mechanics still used today. While critics debated its dark atmosphere and navigation, the game established the Varia Suit's signature look and the series' first save system, forever altering Samus Aran's journey.

Developed by Nintendo R&D1 and produced by Gunpei Yokoi, Metroid II tasked players with hunting 47 creatures on the planet SR388. To overcome the hardware limitations of the Game Boy's monochrome screen, designers introduced distinct visual markers for Samus's gear. Most notably, they added round metal shoulders to her Varia Suit to ensure it remained distinguishable from her standard Power Suit. This design choice became a permanent fixture for the character across all subsequent entries in the franchise.

The game also introduced foundational gameplay elements that redefined the series' scope. It was the first to feature save modules, allowing players to preserve their progress, and it debuted the Spider Ball, Spring Ball, and the Space Jump. These additions provided unprecedented freedom, enabling Samus to scale ceilings and traverse environments with newfound mobility. The title also introduced a complex lifecycle for its titular enemies, who evolved through five distinct stages, ranging from original forms to powerful Omega variants.

Reception was polarized, with contemporary and retrospective critics often divided over the game's design. While some praised its suspenseful atmosphere and challenging scope, others found the lack of an in-game map and the zoomed-in perspective frustrating for navigation. Despite these critiques, the game's emotional conclusion—where Samus spares a hatchling that imprints on her—served as a pivotal narrative moment. This ending deeply moved director Yoshio Sakamoto, providing the direct creative spark for the development of the acclaimed 1994 sequel, Super Metroid.

By late 2003, the game had sold 1.72 million copies worldwide. Its legacy persists through both official and unofficial channels, including a 2017 remake titled Metroid: Samus Returns and the 2016 fan-made project AM2R. Even decades later, the game remains a subject of intense discussion among fans, often cited for its role in evolving the series from a simple action game into a more complex, atmospheric experience.

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