Hatch a pet
Every pet is an ERC-721 token on the PetPass contract. It has three needs; if any goes unmet for too long it lapses. Its wallet pass shows how it is doing and carries links to care for it.
Connect a wallet to hatch a pet.
No browser wallet? Use a demo wallet creates a throwaway testnet key in this browser. It holds nothing of value: this app pays for the hatch and the care. Clearing your browser data loses it, and the pet with it.