Install confetti cannons with timers around the store and sync them with that sound. Post video on youtube.Stripper13 said:Wow. So in the interest of privacy won't go into too much detail - but basically I work as a manager of a supermarket currently. This supermarket has a big campaign going related to schools etc. So they're playing some advertising over the PA system instore - and at the end there is the sound of kids cheering. It plays every 15mins or so and it sounded familiar. Just heard it again and it is DEFINITELY the sound of the grunt birthday party skull/armor-effect. Possibly it's a generic sound effect used across a variety of things - but it's identical nonetheless. If I get a chance (might look strange to co-workers), I'll grab an audio clip off the PA speakers for HaloGAF's approval.