One of the best games for me would probably be the one they used in "The Lucky Pillow of Annie Taylor," "The Applewood Amulet of Emiliano Zapata" and the other two episodes that day, where the players had to figure out which panels could be pushed in to create indents in the walls that they could use to climb up.
Mind you, I'm not the tallest person in the world, but I'm a fairly fast climber. Having something at the top that brings me safely back to the bottom helps, too.

Otherwise, I'd love to play that bamboo forest game that was only used in Season 1, Layout IV and the memory version of the hole-plugging game? the only good version of the game, IMO, since it took skill rather than luck? that was only used twice. (Why is it the best games were used the least?

)