Works with their own Trivia pages:
- Metroid
- Metroid II: Return of Samus
- Super Metroid
- Metroid Fusion
- Metroid: Zero Mission
- Metroid Prime Trilogy
- Metroid: Other M
- Metroid: Samus Returns
- Metroid Dread
- Metroid (Manga)
- Metroid: Samus and Joey
Tropes with their own pages:
- Acclaimed Flop: A downplayed example. Metroid is widely held up as a revolutionary game series, being one of Nintendo's premiere franchises since the NES, and with many well-received entries credited for helping to found an entire genre. At the same time, while most of the games aren’t flops by any means and at the very least make back their budget, only three games in the entire franchise have ever broken two million copies sold note . By comparison, Super Mario Land alone sold more copies than every Metroid game combined, until Dread came out and finally pushed the franchise's total sales numbers past the 20 million mark.
- Creator's Oddball: Metroid is tonally much Darker and Edgier than many of Nintendo's other franchises, featuring bleaker aesthetics and having darker themes such as genocide at the forefront rather than as a background element.
- Franchise Killer: Metroid: Other M was seen as this, as its poor reception put the franchise on a six-year hiatus from 2010 to 2016.note When the series finally did get a new entry, it was a Spin-Off title that also saw poor reception; it wouldn't be until the following year that a new, well-received entry would be released, which would prove good enough to revive the franchise, as Metroid Prime 4 and Metroid Dread were announced in the years after.
- God Never Said That:
- Thanks to the rather vehement Broken Base surrounding Metroid: Other M, it has been persistently reported ever since that series co-creator Yoshio Sakamoto hates the Metroid Prime Trilogy due to his minimal involvement in their creation and views them as Canon Discontinuity. In reality
, he considers them to be great games and fully canonical, but regularly stresses that they are self-contained interquels taking place early in the series' chronology. In addition, an October 2021 interview with former Retro Studios sound designer Clark Wen had him reveal that Sakamoto himself was on-hand during the first game's development to ensure the game's lore stayed faithful to the rest of the series. The belief that he hates the Prime games stems from an interview where he explains that the events of the Prime games have no impact on the plot of Other M. Speaking of, Other M and subsequent Metroid games still feature continuity nods to some of Prime's worldbuilding. Metroid: Samus Returns, a remake of the second game in the series, would even explicitly canonize the Prime titles by adding new story content in the form of Ridley transitioning from his cyborg-form Meta Ridley to his organic body from Super Metroid, better linking the two halves of the franchise together. - In the same vein, some fans claimed his statement meant he considered Other M more important to the series than the Prime games. He never made a definitive statement about this either way, but when discussing the Myth Arc of the 2D games following the announcement of Metroid Dread, Sakamoto didn't even pay Other M lip service, implying that it's just as much of a Gaiden Game to the main series as the Prime installments.
- Thanks to the rather vehement Broken Base surrounding Metroid: Other M, it has been persistently reported ever since that series co-creator Yoshio Sakamoto hates the Metroid Prime Trilogy due to his minimal involvement in their creation and views them as Canon Discontinuity. In reality
- Serendipity Writes the Plot:
- The appearance of the Varia Suit in Metroid II: Return of Samus and onwards is the result of the Game Boy's lack of color. The original NES game had Samus's suits differentiated only by color, but since the grayscale Game Boy lacked such a color palette, the suit itself was redesigned with large shoulders, which would become its trademark.
- With Metroid, the iconic Morph Ball came into being because the programmers had trouble making an appealing animation of Samus crawling through small passageways. So they made a much simpler animation of a rolling ball.
- Stock Sound Effect:
- Present in both Super Metroid and Zero Mission. Both games make use of a roar originally used in Universal's 1957 film The Land Unknown for the Tyrannosaurus. Kraid uses this roar in both games, while Crocomire and Phantoon share it with him in Super Metroid.
- Also present in Super Metroid is Anguirus' roar used for both Draygon and Ridley. It may be due to this that the other roar was mis-attributed to this franchise as well, with the trivia web series Did You Know Gaming saying that it's the monster Titanosaurus.
- Throw It In!:
- Samus being a woman wasn't used until the last minute when some of the developers thought it would be cool to surprise players that beat the game fast enough with such a twist.
- The Varia Suit was mistranslated from the Japanese Barrier Suit, the Japanese equivalent. The new name was kept for the sake of consistency, but has the bonus of also potentially being short for "Variable Suit", pertaining to its abilities to handle many different types of environments.
- Urban Legend of Zelda: Many minor ones, but most well-known are the belief that the infamous Justin Bailey code had an actual meaning (ie, "just in (a) bailey," with "bailey" supposedly being an Australian slang for "swimsuit," or the name of one of the programmers who worked on the localization), and that a similar code exists in Metroid II and Super Metroid. "Justin Bailey" is just one of many randomly generated codes, some of which grant the same result, and no similar code exists in other entries of the series.
- What Could Have Been: Has its own page.
- Word of Gay: In a 1994 interview with Metroid and Super Metroid background designer Hirofumi Matsuoka, Matsuoka claimed that only he knew that Samus Aran is secretly a "newhalf", a slang term similar to "shemale". It has been hotly contested within the fandom whether this statement should be taken as official confirmation of Samus being transgender, or if it should just be dismissed as a joke in poor taste by a non-authoritative source; note that series director Yoshio Sakamoto directly contradicted this statement in a 2004 FAQ, where he said that a Metroid game on PlayStation was "as likely as Samus being a newhalf", i.e. an expression of extreme unlikelihood akin to "when Hell freezes over" or "when pigs fly".
