Supercell recently released the Squad Busters Sonic the Hedgehog event, and it is packed with in-game rewards. For starters, it grants crucial in-game currencies like Star Tokens, Style Tickets, and coins. It also rewards some chests and multipliers. On top of that, players can unlock Squad Buster's latest Hero, Sonic, through this event.This article further highlights the Squad Busters Sonic the Hedgehog event.Squad Busters Sonic the Hedgehog event: Everything you need to knowDetailsSimilar to previous collaborative events, the Squad Busters Sonic the Hedgehog event tasks players to earn a temporary currency that can later be exchanged in the Plaza. To advance in the Sonic event, players must collect Rings.DurationThe event arrived on June 17 and will be available till July 7, 2025. Players have 21 days to complete the event. Currently, Sonic in Squad Busters can only be unlocked through this event. Later on, players can unlock him through the shop and chests.Also read: Best attackers to use in Squad BustersRewardsIn the Sonic the Hedgehog event, players collect Rings to progress through a reward track. They can access it by tapping on the Sonic in the Plaza; doing so will display the current progress and remaining rewards.All the milestones and rings required are as follows:CostRewardFree3000 Coins250 Ringsx2 Chest Doubler250 Rings350 Hero Points250 RingsEpic ChestFree3000 Coins500 Rings150 Hero Points250 RingsChest TriplerFree3000 CoinsFreeRare Chest250 Rings200 Hero Points250 Rings100 Star TokensFree3000 Coins750 RingsEpic Chest750 Rings500 Hero750 RingsSonicFree200 Sonic Tokens1000 Rings120 Sonic Tokens and 1 ChestFreeChest Tripler1000 Rings100 Sonic Points and 1 Epic ChestFree100 Star TokensFree300 Hero Points750 Rings80 Hero Points1000 Rings120 Hero PointsFreeEpic Chest600 Rings60 Sonic Points and Chest DoublerFree3000 Coins600 Rings60 Sonic Points1000 Rings120 Sonic PointsFree100 Star Tokens1000 Rings120 Sonic Tokens1000 Rings120 Sonic TokensFree150 Hero PointsFreeChest Doubler and 500 Style Tickets1000 Rings120 Sonic Points750 Rings100 Sonic Points750 Rings80 Sonic PointsFree200 Hero Points1000 Rings120 Sonic Points and Epic ChestFree3000 Coins500 Rings50 Sonic Points1000 Rings120 Sonic Points250 Rings30 Sonic PointsFree150 Hero Points750 Rings80 Sonic Points250 Rings30 Sonic Points500 Rings50 Sonic PointsFree3000 Coins and Rare Chest250 Rings30 Sonic Points250 Rings30 Sonic Points1000 Rings120 Sonic PointsFree100 Star Tokens and Chest Doubler1000 Rings120 Sonic Points1000 Rings120 Sonic Points750 Rings80 Sonic PointsFreeEpic Chest250 Rings30 Sonic Points750 Rings80 Sonic Points250 RingsChest Doubler and Rare Chest750 Rings80 Sonic Points1000 Rings120 Sonic PointsFree3000 Coins1500 Rings180 Sonic Points and Chest Doubler750 Rings80 Sonic Points1000 Rings120 Sonic PointsFreeChest Tripler1000 Rings120 Sonic Points1250 Rings140 Sonic Points600 RingsRare Chest Style 500 Tickets1000 Rings120 Sonic Points1500 Rings180 Sonic PointsFree3000 Coins1500 Rings180 Sonic Points1500 Rings180 Sonic PointsFreeEpic Chest1000 Rings120 Sonic Points1000 Rings120 Sonic PointsFree100 Star Tokens750 Rings80 Sonic Points1500 Rings180 Sonic Points500 RingsChest Doubler and Epic Chest750 Rings80 Sonic Points1000 Rings120 Sonic PointsFreeRare Chest1500 Rings180 Sonic Points1000 Rings120 Sonic PointsFreeEpic Chest1000 Rings120 Sonic Points500 Rings50 Sonic PointsFree3000 CoinsFreeRare Chest1500 Rings180 Sonic Points1250 Rings140 Sonic Points and 500 Style ticketsFree100 Star Tokens2500 Rings240 Sonic Points1500 Rings180 Sonic Points and 1 Rare ChestFreeChest Doubler1500 Rings180 Sonic Points1000 Rings120 Sonic Points and 1 Rare ChestFreeEpic Chest2000 Rings200 Sonic TokensTherefore, players must collect 3,250 Rings to unlock Sonic in Squad Busters. They can collect further Rings to get Sonic Points, which can be used to level up this new Hero. Additionally, a total of 66,250 rings are required to collect all rewards.Apart from limited-time resources, the event also rewards chests, multipliers, Star Tokens, and other items.How to collect Rings in the Squad Busters Sonic the Hedgehog eventTo collect these Rings, you can do the following:Pick them up during battles in Green Hill Zone.Collect daily rewards, as they will also grant some rings for the duration of the event.Claim the free bunch of rings released every day through the in-game shop.Purchase them from the in-game shop for coins or real money.Check out our other articles on Squad Busters:Squad Busters x Sonic update (June 2025): New Heroes, Squaddies, and moreSquad Busters: How to unlock Heroes and abilitiesIs Squad Busters 2.0 update worth it?Best characters to use with Shelly in Squad BustersHow to play Leon in Squad Busters: Information, stats, and strategies