Metroid · NES · Nintendo of America · 1987 · 24 pages
The Metroid manual was unremarkable in most respects, but buried in its lore section was an unambiguous statement that Samus Aran was female — information the game concealed behind an unlock condition that most players never reached.
Nintendo's design for Metroid included a reward for speed completion: finishing the game in under five hours revealed Samus Aran without her Power Suit, confirming a gender that the game otherwise left ambiguous through armor and androgynous name. Most players in 1987 did not finish the game in five hours. Most players who did were surprised. What fewer players noted was that the manual's lore section, in describing Samus's history with the Galactic Federation, used female pronouns explicitly. The reveal was never hidden in the text — only in the game's unlock gate. The manual was the honest document; the game was the one keeping secrets.
Containing the earliest explicit textual confirmation that Samus Aran was female, predating widespread awareness of the in-game speed-run reveal.
The relevant passage in the Metroid manual is easy to miss because it sits among paragraphs of worldbuilding about the Space Pirates and the Galactic Federation. It describes Samus as having been raised by the Chozo after her parents were killed on K-2L, notes her enrollment in the Galactic Federation Police, and uses the pronoun "she" without fanfare or emphasis.
Nintendo was not hiding anything in the manual. The text assumed that players would read it and understand Samus's gender as background information. The game's reveal mechanic was a reward for skill, not a correction of ambiguity — the ambiguity was only experienced by players who skipped the manual, which in 1987 was most of them.
This gap between document and experience created one of gaming's most discussed "reveals," which was never really a reveal at all for readers who started with the box.
The Power Suit obscured Samus's gender as a gameplay decision, not a narrative deception. Miyamoto and Sakamoto wanted a figure that felt imposing and alien within the Metroid environments, and full armor accomplished that. The decision to reward speed completers with the unarmored Samus was added as a bonus — an Easter egg in modern terminology.
What the design team did not fully account for was the degree to which players would experience the armored figure as the default characterization, and the manual's lore section as supplementary material rather than primary text. In the pre-internet era, the box contents were the canon. Players who read carefully knew. Players who played quickly discovered. Players who did neither — the majority — remained uncertain for years.
The Metroid manual's treatment of Samus is now cited in game studies literature as an early example of the gap between authored identity and player-constructed identity, emerging entirely from the accident of what players chose to read before picking up the controller.