Sound effects in “Sonic the Hedgehog” include the iconic Sega chant that plays on the opening screen and the skidding noise that plays when Sonic tries to stop after running fast. These sound effects were created using the Sega Genesis Yamaha YM2612 and Zilog Z80 synthesizer sound chips.

All of the sound effects that appear in the “Sonic the Hedgehog” game are not original. The skidding noise was first used in “Outrun,” which was another Sega title. Reusing sound effects from past games is a common practice in the video game industry.

The developers of “Sonic the Hedgehog” originally wanted to place a sound test in the game that players could access to listen to the sound effects and music any time they wanted. However, due to time constraints, they were forced to cut the sound test from planning, which left a lot of empty space on the cartridge. The developers instead decided to include a splash screen that would chant “Sega” when users first turned on the game. The audio file was so large in size that this single word chant took up one-eighth of the total available space on the game. The room needed to add this one audio file into the game was larger than most of the in-game levels.