Battle Spaces[1] (バトルマス[2],Batoru Masu?, lit. "Battle") are game elements that appear in Sonic Shuffle. They are Spaces found on Boards that force the player to battle one of the Board monsters.
Overview
When a player lands on this space, a battle between them and a Board monster will occur. The player attacks the monster using one of their Magical Cards. Once a card is played, it will float next to the player and spin from 1 to the highest number of the card in question. To defeat the monster, the player must either match the card shown over the monster or play a higher number. The Special Card allows the player to use their character's special ability,
Upon winning, the monster will vanish from the battlefield and the player will receive a Forcejewel. In Story Mode, if the player defeats the monster with a critical hit, they will receive an additional Forcejewel. In Versus Mode, the player can steal 10 or 20 Rings from their opponent, with the ability to steal double the amount should they defeat the monster with a critical hit.
If the player fails to defeat the monster or play an Eggman card, they lose the amount of Rings equal to the monster's card multiplied by ten. If the player loses the battle and has no Rings, they must rest for a turn.