Each player has their own deck, a fate deck, their board, and their 3D character. In Bigger and Badder, players will take on the roles of Syndrome (The Incredibles), Lotso (Toy Story 3), and Madam Mim (The Sword in the Stone).

In a round, the active player moves their character to a different location on their board, takes one or more of the actions visible at that spot (often playing cards from their hand), and then refills their hand to four cards. The cards are allies, items, effects, conditions, and (for some characters) curses.

You must use your cards to fulfill your unique win condition. One of the actions allows you to choose another player, draw two cards from their deck, and then play one of them on their board, covering two of the four action spaces in one of that player's locations. The fate deck contains heroes, items, and effects from the villain's movie, and these cards allow other players to hinder that specific villain.