'How i can create more extended levels for NFT?

I create NFT

How i can create NFT levels like this ? https://i.stack.imgur.com/lg8kt.png

Im using python and brownie for compile and deploying smart-contract.

Solution 1:^[1]

You can investigate the DNA algorithm. In simple:

Your NFT struct should contain a field like: NDA or characteristic
The value of field above is: 0xAF125689
Expose this field into your backend service
You can split the value above into pairs [AF, 12, 56, 89], each pair identify for a property, can be level, skin...

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Solution	Source
Solution 1	PySoL