They are both excellent games. VV2 is an improvement on VV1 because of various added touches, such as totems and collectibles, but the general gameplay is the same.
Gameplay is slightly different, though; there's not so much for the player to do once the game is up and running, so it's best to run it for a few minutes at a time, close it, then reopen it a little while later, rather than keep watching it for long periods.
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To err is human; to arr is pirate.