Calvinball is a game invented by Calvin and Hobbes. Calvinball has no rules; the players make up their own rules as they go along, so that no Calvinball game is like another.
Rules cannot be used twice (except for the rule that rules cannot be used twice), and any plays made in one game may not be made again in any future games. The game may involve wickets, mallets, volleyballs, and additional sports-related equipment.
There is only one permanent rule in Calvinball: players cannot play it the same way twice. For example, in one game of Calvinball, the goal was to capture the opponent’s flag, whereas in a different game of Calvinball, the goal was to score points by hitting badminton shuttlecocks against trees using a croquet mallet.
TMC for ek hornbeck