Sir Bonesy is one of the three skins released under the third volume of the Skulls of Agario offer. It could be individually purchased using game coins in mid August 2020.
Sir Bonesy could be purchased in the Skins Shop under the ‘Skulls!’ tab for 2100 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: Sir Bonesy was released again for a limited time in the Best Skins of 2020 offer in late December 2020. For this release Sir Bonesy could be purchased individually for 2500 coins.