Watch out for Scorpion Solitaire! It Stings. Scorpion Solitaire is a puzzle game that borrows aspects from Spider Solitaire, and is way more difficult.
Just like in Spider Solitaire, the goal is to build stacks of similarly-suited cards in descending order (say, King of Spades down to Ace of Spades) to remove them from the tableau. Beat Scorpion Solitaire when all cards have been removed from the game.