From Video Game Music Preservation Foundation Wiki
Pork Parts is one of the 10 different songs that are played during a regular game. It is the first track that is played. The tracks are played in sequence starting from Pork Parts and ending with Neep Ninny-Bod (Mix 2), at which point the list starts over from the beginning.
The track was composed by Stephen Rippy using a Boss DSS-330 synthesizer and an E-mu ESI-32 sampler. Finally, the mixing and editing was done using SoundForge.
The song title has been confirmed by Stephen Rippy.