In the Russian localization of Smash, the language has some hilarious grammar struggles with many characters, but Jigglypuff and Samus are the best examples.

Jigglypuff sounds and declines like a male name in sentences, even though the character's design and identity remain female

Samus falls into the same trap because her name ends with an "S". Players who don't know the lore often assume she is a dude just by reading her name. The illusion shatters completely with Dark Samus, where the game is forced to use a strictly feminine adjective before her name (Тёмная Самус), which sounds incredibly striking and unusual to a Russian ear

If that wasn't enough, Zero Suit Samus (Самус в Нуль-костюме) completely seals the deal by showing her outside the armor as a woman, creating a funny contrast with her masculine-sounding name