Psychopanda is one of the two skins released in second part of the Mr. Spank's Beats Shop offer. It could be purchased as part of an item deal in mid November 2018.
Psychopanda could be purchased for $9.99 in the limited time "Best Deal!" which included 25000 coins, 1200 DNA and the Chillpanzee skin. 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 second part of the Mr. Spank's Beats Shop offer was released again for a limited time in early February 2020. The price and included items remained the same for Psychopanda. However, the amount of coins and DNA were reduced to 10000 and 1000 respectively.