You can purchase the Double Paper Planes booster ✈️ before levels start or get it as a reward. They especially come in handy on difficult fields with targets that are hard to reach 😉
Tap the icon in the pre-level window to activate them. The booster won't show up on the field, but you'll get twice as many Planes on the level when you activate them.
And if you can match two Planes, you'll launch five, each with its own target 🎯