| Achievement | How to unlock
|
|---|
| Alien encounter | Unlock next alien invader.
|
| Allied forces | Start game with three additional bird assitants.
|
| Arctic explorer | Unlock all characters in Arctic.
|
| Asia explorer | Unlock all characters in Asia.
|
| Awesome messer | Mess on 200 aliens in a row not hitting anything else.
|
| Blind messer | Mess on ground 10000 times.
|
| City explorer | Unlock all characters in City.
|
| Excellent messer | Mess on 50 aliens in a row not hitting anything else.
|
| Flock | Unlock 10 birds.
|
| Good messer | Mess on 10 aliens in a row not hitting anything else.
|
| Level Arctic | Unlock level Arctic.
|
| Level Asia | Unlock level Asia.
|
| Level Mexico | Unlock level Mexico.
|
| Liberator | Save 5000 friends.
|
| Mexico explorer | Unlock all characters in Mexico.
|
| Never give up | Mess on 500 friends.
|
| Next bird | Unlock next bird.
|
| No more alone | Unlock slot for second bird.
|
| Persistent player | Play 3000 games.
|
| Ufo seeker | Unlock unidentified flying object.
|
