If understood correctly, there are no gameplay yet.
Right now you can only buy nyancats for future with a greay discound.
All functional will be added later. Don't panic
I am guessing that these nyancats are not non-fungible tokens? (Since this in on waves platform and i don't recall them supporting those.)
The cats will be NFT.
Waves already developed NFT token standard and they will launch NFT exchange at the same time as the release of Nyan Cat: The Crypto Racing Game.