Click on the location symbol on the bottom of your home screen to open the map. Choose a node of a sector where you suspect foes who deserve to be taught a lesson.

Each battle requires  you to spend Energy. Don't forget to update your team in order to optimize your chances!

Match at least three tiles in order to aim attacks at the foes by swapping the tile positions on the grid. Special tiles will help you clearing many tiles at once. Enemies may lurk further back. How many foes are left will be displayed on the top of the screen.

Keep an eye on the yellow power bar. They will charge as you activate gems of the corresponding color. Once fully charged, unleash the character's special move! If you want to target a specific foe, tap on the rival character before using the special move.