NFT creation process

1. Acquisition: items can be obtained through battles, quests, or marketplace purchases.
2. Upgrading: enhance items in the Cyber-Synthesizer to boost their stats.
3. Conversion: convert items into NFTs via a special interface, recording them on the blockchain.
4. Trading: list NFTs for sale within the game or on external platforms.

This process allows players to earn real income and expands the Play-to-Earn mechanics in DeFight Club.