main.pak file. After Plants vs. Zombies 2 is unpacked, the music file is in the main.pak file. According to the official Plants vs. Zombies website, after unpacking Plants vs. Zombies 2, the music files are in the sound directory in the main.pak file. "Plants vs. Zombies 2: A Journey Through Time and Space" is a puzzle strategy tower defense game developed by American Prokai Games and Electronic Arts. It is also the orthodox sequel to "Plants vs. Zombies". Officially released on July 18, 2013.