A Stock Ball is an item in Super Smash Bros. Brawl. In the Adventure Mode of the game, the Subspace Emissary, Stock Balls increase the number of lives the player has left. Nothing much is known about Stock Balls but Sakurai suggests to not let any Stock Ball behind. The balls are surrounded in a bright purple and yellow light. In the center is what seems to be a human sillouhette, indicating the extra life.