Place this clip at the cut where a character enters or a disguise comes off, then follow it with an Anime Wow reaction for the reveal and keep a Dramatic Dun Dun Dun sting for a later twist, so the ninja moment stays first and the bigger payoff comes after.
About this sound
This clip is a brief Japanese-style ninja vocal burst spelled ニニニニン, running under two seconds with a sharp, stagey delivery that hits like a sudden cue from an anime scene. It feels playful and mischievous, giving a sneaky entrance or fast reveal a comic jolt of surprise without taking over the moment.