Misty Valley - Normal
Complete Misty Valley on the normal difficulty.
74% unlocked
4 points
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Passing Storm - Normal
Complete Passing Storm on the normal difficulty.
27% unlocked
4 points
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Foothills - Normal
Complete Foothills on the normal difficulty.
9% unlocked
4 points
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Canyon - Normal
Complete Canyon on the normal difficulty.
55% unlocked
4 points
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Dunes - Normal
Complete Dunes on the normal difficulty.
36% unlocked
4 points
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Snow Hills - Normal
Complete Snow Hills on the normal difficulty.
54% unlocked
4 points
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Frozen - Normal
Complete Frozen on the normal difficulty.
18% unlocked
4 points
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Exterminator
100 birds killed
43% unlocked
20 points
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Hypochondriac
50 hit points repaired
11% unlocked
20 points
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Freeloader
100 ammo equipped
34% unlocked
20 points
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Chopper 2 Lover
48 hours in the air
<1% unlocked
20 points
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Self Destruction
Chopper destroyed 200 times
2% unlocked
20 points
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Bulldozer
50 buildings destroyed
11% unlocked
20 points
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Bomber
200 bombs dropped
31% unlocked
20 points
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Rocket Science
200 rockets fired
33% unlocked
20 points
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Crusher
20 enemies squashed
9% unlocked
20 points
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Dedication
200 retries at completing levels
15% unlocked
20 points
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Cruiser
20 missions passed with 0 time left
4% unlocked
20 points
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Perfectionist
20 missions passed with perfect health
2% unlocked
20 points
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Music Lover
20 times through the Chopper 2 soundtrack
11% unlocked
20 points
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Misty Valley - Harder
Complete Misty Valley on the harder difficulty.
11% unlocked
10 points
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Misty Valley - Hard
Complete Misty Valley on the hard difficulty.
13% unlocked
6 points
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Canyon - Harder
Complete Canyon on the harder difficulty.
5% unlocked
10 points
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Canyon - Hard
Complete Canyon on the hard difficulty.
8% unlocked
6 points
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Snow Hills - Harder
Complete Snow Hills on the harder difficulty.
4% unlocked
10 points
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Snow Hills - Hard
Complete Snow Hills on the hard difficulty.
8% unlocked
6 points
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Chillyopolis - Harder
Complete Chillyopolis on the harder difficulty.
3% unlocked
10 points
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Chillyopolis - Hard
Complete Chillyopolis on the hard difficulty.
5% unlocked
6 points
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Chillyopolis - Normal
Complete Chillyopolis on the normal difficulty.
41% unlocked
4 points
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Dunes - Harder
Complete Dunes on the harder difficulty.
2% unlocked
10 points
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Dunes - Hard
Complete Dunes on the hard difficulty.
5% unlocked
6 points
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Night Terror - Harder
Complete Night Terror on the harder difficulty.
2% unlocked
10 points
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Night Terror - Hard
Complete Night Terror on the hard difficulty.
4% unlocked
6 points
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Night Terror - Normal
Complete Night Terror on the normal difficulty.
30% unlocked
4 points
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Passing Storm - Harder
Complete Passing Storm on the harder difficulty.
2% unlocked
10 points
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Passing Storm - Hard
Complete Passing Storm on the hard difficulty.
4% unlocked
6 points
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Frozen - Harder
Complete Frozen on the harder difficulty.
1% unlocked
10 points
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Frozen - Hard
Complete Frozen on the hard difficulty.
3% unlocked
6 points
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Cliffs - Harder
Complete Cliffs on the harder difficulty.
1% unlocked
10 points
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Cliffs - Hard
Complete Cliffs on the hard difficulty.
3% unlocked
6 points
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Cliffs - Normal
Complete Cliffs on the normal difficulty.
20% unlocked
4 points
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Twilight Towers - Harder
Complete Twilight Towers on the harder difficulty.
1% unlocked
10 points
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Twilight Towers - Hard
Complete Twilight Towers on the hard difficulty.
2% unlocked
6 points
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Twilight Towers - Normal
Complete Twilight Towers on the normal difficulty.
16% unlocked
4 points
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Alpine Base - Harder
Complete Alpine Base on the harder difficulty.
<1% unlocked
10 points
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Alpine Base - Hard
Complete Alpine Base on the hard difficulty.
2% unlocked
6 points
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Alpine Base - Normal
Complete Alpine Base on the normal difficulty.
14% unlocked
4 points
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Foothills - Harder
Complete Foothills on the harder difficulty.
<1% unlocked
10 points
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Foothills - Hard
Complete Foothills on the hard difficulty.
2% unlocked
6 points
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Game Complete - Harder
Complete the game on the hardest difficulty.
<1% unlocked
100 points
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Game Complete - Hard
Complete the game on the hard difficulty.
1% unlocked
75 points
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Game Complete - Normal
Complete the game on the normal difficulty.
5% unlocked
50 points
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Airtime
6 hours in the air
10% unlocked
20 points
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Pilot License
24 hours in the air
<1% unlocked
20 points
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