@marekt
you mean like this:
https://www.redhotpawn.com/chess-games-explorer/user-games.php
?
@marekt
you can download pgn's of specific games not the whole lot.
You could contact Greenpawn who is doing a nice blog. It seems he knows how to get a deeper analysis. If you look for a given position in the site database you have to paly out the moves until you get there (variations of the moves will count)