Mighty Eagle will crash down on the area where you have shot the sardine can! Mighty Eagle can be used freely on levels that you have already beaten. However, on levels you have not beaten, you can use Mighty Eagle once and will need to wait for the cooldown to end before he can be used again.  Also, unlike the original game, Mighty Eagle does not need to be purchased!

You will gain an Eagle high score whenever Mighty Eagle is used on a level. If the score reaches 100 percent, you will be granted a Mighty Feather for that level.