Place it at the end of a build-up, just as the winning result is shown, then follow it with a cheer sound for the celebration. For a wrong guess, put a game show buzzer before it instead, so the win still lands as a surprise twist.
このサウンドについて
This is a brief metallic hit lasting just over a second, a single sharp 'gako' cue with no voice or music behind it. It feels sudden and triumphant, like a tiny win flashing up out of nowhere, and it makes an ordinary moment seem luckier than it really is. It comes from Juggler, a long-running Japanese pachislot series.