Special item Rotor, TNT, and Puzzle Cube can be made by matching cubes.
 
When a group of cubes is large enough to get an item, the center part of all the Cubes in the group indicates what special item you will get if you pop that group!
 
Rotor: Match 5 or 6 Cubes of the same color
TNT: Match 7 or 8 Cubes of the same color
Puzzle Cube: Match 9 or more Cubes of the same color
 
You can even make combos by matching two items together, such as Rotor + TNT, to clear an even larger area!
 
There are also Rotor, TNT, and Puzzle Cube Boosters that can be used before starting a level. These can be purchased with coins, or earned from the Cube Party, Hoop Shot, Daily Bonus, and Rotor Party.