To program sounds into his game, the author first imported .WAV and .MP3 files into the game maker project. He then browsed his sound library and selected sounds to add to the "Sounds" folder. To play the sounds, the author used the code "audio_play_sound(soundID,Priority,loop)" in different events like player create. This allowed sounds like the main music, jumping, and trap sounds to play when wanted. The author repeated this process to add a total of 4 sounds to the game.