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A specific type of blue bodysuit associated with Samus Aran.
The Zero Suit has a different look in Metroid: Other M (which is also used in Super Smash Bros. for Wii U/3DS), so try to tag images to reflect that. For reference, the suit's Other M style sports dark blue accents—most notably on the inside of the thighs and a narrow stripe down each breast—compared to its usual segmented, solid-color look. It also isn't as skintight and doesn't completely cling to each breast separately like it normally does. Also, while not part of the suit itself, Samus in her Other M appearance will usually have a holster for the Paralyzer pistol around the suit's right thigh and a mole below her left lip. Barring all else, however, go by the suit coloring.
Compare these:
Standard - post #1101131
Other M - post #1656885
See also
- NicoSeiga tag search: ゼロスーツサムス