Hot Coffee is one of the five skins released under the Agar.io Menu offer. It could be individually purchased using game coins in late July 2016.
Hot Coffee could be purchased in the Skins Shop under the ‘Food’ tab for 490 coins. It was available for a limited time and may not be available for purchase in the future.
Details of this offer can vary depending on location, platform or time.
Note: The Agar.io Menu offer has been released multiple times after the initial 2016 debut. Additional limited time releases were in early May 2018 and then in late May 2020 under the name Food Glorious Food. The cost for Hot Coffee was 490 coins for every release.