The Win streak rewards you for winning multiple levels in a row. The next level will start with bonus Rockets and Bombs already made for you.
The longer your Win Streak, the more bonuses you get.
However, if you fail a level you will lose the Win Streak and have to start it over.
Win streaks are introduced after winning level 22
- Win streak 1 grants: 1x rocket, 1x bomb
- Win streak 2 grants: 2x rocket, 2x bomb
- Win streak 3 grants: 3x rocket, 3x bomb