Neco-Arc's short cat-like ngaa sound from Melty Blood, often used in memes and video edits as a chaotic, playful reaction to something absurd.
This is a very short, high-pitched vocal burst from Neco-Arc, the mischievous cat version of Arcueid from the Melty Blood fighting games. It sounds like a sudden, squeaky cat-like cry, somewhere between a meow and a startled yelp, delivered with exaggerated, almost cartoonish energy. Because it lasts barely a second and a half, it lands as an instant punchline rather than a line of dialogue, cutting through a scene and making the moment feel sillier, more chaotic, and deliberately over the top. Listeners usually recognise it immediately as Neco-Arc's signature brand of absurd, self-aware humour.
Neco-Arc began as a joke character in Melty Blood, the fighting game spin-off of Type-Moon's visual novel Tsukihime, where she parodies the heroine Arcueid as a small, chaotic cat girl. Her exaggerated voice lines and unpredictable behaviour made her a favourite in fighting game communities and later across meme videos, streams, and short-form edits. Short clips like this one spread because they are instantly recognisable even without context, giving creators a quick way to signal playful absurdity. She remains a cult figure long after her debut.