Combining power-ups helps you clear more tiles and produce bigger explosions. Here are the combinations currently in the game:
Bomb+Bomb doubles the radius of the bomb effect.
Bomb+Rocket removes three rows and columns of pieces.
Rocket+Rocket removes one row and one column of tiles regardless of which way they are pointed.
Bomb or Rocket + Paper Plane makes the Paper Plane take the Bomb or Rocket along with it to a random tile.
Plane+Plane produces three Paper Planes that target different tiles.
Rainbow Ball + Rocket/Bomb/Plane makes the Rainbow Ball turn all the pieces of one type (the one currently the most common on the field) into respective power-ups.
Rainbow Ball+Rainbow Ball removes all pieces from the field, clearing one obstacle layer in the process.
Bomb+Bomb doubles the radius of the bomb effect.
Bomb+Rocket removes three rows and columns of pieces.
Rocket+Rocket removes one row and one column of tiles regardless of which way they are pointed.
Bomb or Rocket + Paper Plane makes the Paper Plane take the Bomb or Rocket along with it to a random tile.
Plane+Plane produces three Paper Planes that target different tiles.
Rainbow Ball + Rocket/Bomb/Plane makes the Rainbow Ball turn all the pieces of one type (the one currently the most common on the field) into respective power-ups.
Rainbow Ball+Rainbow Ball removes all pieces from the field, clearing one obstacle layer in the process.