Note: 1. The cat consumed in star upgrading is not recoverable and irreversible; 2. Star upgrading will only change the basic attributes and the display of the relevant star level, while the appearance, elements, skills and other information will not be changed; 3. The basic attributes increased by star upgrading will take effect in PVE and PVP battles; 4. The star level will not be inherited by the offspring cats; 5. The cat star attributes bind up with the NFT, transfer or transaction will not change the cat star level.