Place it at the start of a birthday reveal, before the name or gift appears, then follow it with a bell ding as the candles are shown and an air horn when the celebration peaks, keeping the birthday moment first and the party sounds after it.
About this sound
This four-second clip plays the bright, bouncy happy birthday melody from Roblox's 2010 birthday cake item, with simple, toy-like notes that sound cheerful and light. It gives a warm, playful lift that makes a moment feel like a small party, especially for longtime players who remember the early game and its early celebrations.