A fixed-price auction is a type of auction where the price for the assets being auctioned is pre-determined and agreed upon by the auctioneer and participants. This type of auction is typically used when the auctioneer has a specific value target for the assets being sold. It operates on a first-come, first-serve basis. In addition, these auctions are time-contingent and automatically executed, meaning that assets are swapped at the agreed upon time. Bounce Finance offers fixed-price auctions for both ERC20 tokens and BEP20 based assets. Furthermore, Bounce V3 offers a feature called "regret functionality," which allows participants to participate and withdraw from an auction at any time during the auction process.