Buster was first revealed to the internet in FreQuenczy's review of the game "Wii Fit". Since then he has been included in many other videos on his channel, such as the "Magical Chicken" series, which he sometimes uses to choose games to review. In FreQuenczy's discord, there has been one main creator of Buster memes by the name of "PixelHatProductions. He has created many different memes of Buster so far including "GhostBusters", "PawnBuster" and "The Grim Adventures of Buster and Mandy".

Original Video by FreQuenczy: https://www.youtube.com/watch?v=mwR21UotyFk
Buster Memes playlist by PixelHatProductions: https://www.youtube.com/playlist?list=PLwEZXUVJlHxkssaWA_mkYSuJRMGL8gISy