Here we create the basics of a blockchain game by develop a fully dynamic NFT with on-chain metadata that changes based on your interactions with it, and deploy it on Polygon Mumbai to lower gas fees.

https://mumbai.polygonscan.com/address/0x1b6Dc6F940095C348022e668f05e8a4f4f513A73

To interact with it, and mint the NFT, click on the "Write Contract" button under the "contract" tab, and click on "connect to Web3". Then look for the "mint" function and click on Write.

Copy the smart contract address and paste it into the search bar here: https://testnets.opensea.io/

https://mumbai.polygonscan.com/address/0x1b6Dc6F940095C348022e668f05e8a4f4f513A73

click on the contract tab > Write Contract and look for the "train" function. Insert the ID of your NFT and click on Write. Then go back to your NFT on https://testnets.opensea.io/ and refresh the page.