Sounds became richer and more varied, allowing for more realistic metallic tones.

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.

The sound invokes memories of childhood, saving money, and playing early Nintendo games. Famous Examples

Simple, monotonic beeps were standard due to low bit-depth.

While the Mario "ding" is the most famous, the "coin beep" has evolved alongside technology: