To buy a NFT, go to this page and see what is available (opensea or direct mint if you are lucky)

https://atika-front.vercel.app/

After have purchase your NFT, create an account:

Enter the information needed:

And after have connected your wallet which own your Atika NFT: fetch your token ID

Select the ID of the token you want to use in the game and “update”

After have created your account, you can log by clicking here:

Enter your credentials

Clic to see your profile:

Then you can update the NFT you want to use: