Place this clip right after the on-screen action fails, then follow it with a quieter reaction before moving on. Pair it with the SpongeBob Fail sound for a bigger letdown, or precede it with the Dun Dun Dun sound for a staged reveal.
About this sound
This is the short sorrow emote sound from Animal Crossing, the little musical sting that plays when a character uses the dejected reaction in game. It lasts just over two seconds and carries a droopy, downcast mood that feels sad but still cute, perfect for conveying mild disappointment rather than real grief.