While the Mario "ding" is the most famous, the "coin beep" has evolved alongside technology:
Higher-pitched sounds are generally perceived as positive, signaling a "win" or positive reinforcement, similar to receiving money. video_game_coin_beep_sound_effect
The "Ding": The History and Psychology of the Video Game Coin Sound Effect While the Mario "ding" is the most famous,
The famous coin sound in Super Mario Bros. (1985) was created under strict technical constraints. Composer Koji Kondo used one of the NES's limited sound channels (pulsewave) to create the signature sound. signaling a "win" or positive reinforcement
Modern sound design often layers high-frequency "sparkle" sounds with 8-bit, nostalgic sounds to create a more satisfying, high-fidelity experience.