Board Thread:Plants vs. Zombies 2/@comment-25089892-20150710230358/@comment-25093069-20150711134919

Apparently "side A" and "side B" has something to do with casette tapes. Here's an image:-

http://image.shutterstock.com/display_pic_with_logo/330628/330628,1273041004,1/stock-photo-audio-cassette-isolated-on-white-background-side-a-and-b-52386307.jpg