Tires appear on some levels. You need to make matches or explode power-ups next to them (depending on their endurance level, that can take up to three moves), and you can swap tires with regular pieces when making matches.
Tires appear on some levels. You need to make matches or explode power-ups next to them (depending on their endurance level, that can take up to three moves), and you can swap tires with regular pieces when making matches.