How does this game link itself with NFT blockchain technology?

Collectible images are optionally available as NFTs, they do not affect the game experience at all.

How is blockchain, NFT, or cryptocurrency used in this product?

The experience has some collectible images, that you can optionally see and purchase on Opensea.

This option dont affect at all the experience.

What utility does this bring to the product?

The option of having some of the images collected as NFTs

Does this product require me to connect an external wallet? What wallets does this product support?

No, the product dont require you to connect any wallet.

Can I use the product without interacting or engaging with blockchain, NFT, or cryptocurrency?

Yes, you can use and complete the experience without interact or use the blockchain technology at all.

What chain does this product use? Is the chain proof-of-work or proof-of-stake?

Optionally you can purchase some of the collectible images as NFTs on Polygon blockchain.(proof-of-work).

Does this product have a marketplace? What can I do with the things that I earn (or purchase)?

No, this product doesnt have its own marketplace. just links to Opensea marketplace.