Winning streaks reward you for completing match-3 levels on your first try. There are three streak levels and each has a reward:

• Level 1: 1 Rocket
• Level 2: 1 Rocket + 1 Battery
• Level 3: 1 Rainbow + 1 Battery + 1 Oil Barrel 

If you lose a level by quitting or running out of moves, your winning streak ends.