Mad Muffin is one of the three skins released in the third part of the Freakin Sweet Shop offer. It could be purchased as part of an item deal in late April 2018.
Mad Muffin could be purchased for $4.99 in a limited time deal that included 10000 coins. This skin was not available for individual purchase and may not be available for purchase in the future.
Details of this skin may vary depending on location, platform or time.
Note: The third part of the Freakin Sweet Shop offer has been released multiple times after the initial 2018 debut. Additional limited time releases were in mid December 2019 and then in early May 2020. The price and included coins for Mad Muffin remained the same for each release.