Kill 1000 aliens.
86.5%
Kill 1000 aliens.
Alien Hallway 2 Achievements
22 achievements
Kill 50000 aliens.
48.6%
Kill 50000 aliens.
Kill 500000 aliens.
15.5%
Kill 500000 aliens.
Collect 5000 crystals.
81.3%
Collect 5000 crystals.
Collect 50000 crystals.
57.1%
Collect 50000 crystals.
Collect 500000 crystals.
23.1%
Collect 500000 crystals.
Kill 1000 aliens by barrel explode.
60.0%
Kill 1000 aliens by barrel explode.
Complite 10 additional missions.
57.9%
Complite 10 additional missions.
Complite 50 additional missions.
21.4%
Complite 50 additional missions.
Earn 25 stars.
43.8%
Earn 25 stars.
Earn 50 stars.
25.2%
Earn 50 stars.
Collect 30000 coins.
61.0%
Collect 30000 coins.
Collect 100000 coins.
28.6%
Collect 100000 coins.
Collect 3500000 coins.
14.9%
Collect 3500000 coins.
Kill 20 bosses on easy level.
41.8%
Kill 20 bosses on easy level.
Kill 20 bosses on hard level.
32.6%
Kill 20 bosses on hard level.
Kill boss Kraken on hard level.
16.6%
Kill boss Kraken on hard level.
Upgrade any soldiers 10 times
45.4%
Upgrade any soldiers 10 times
Upgrade soldier to maximum.
35.5%
Upgrade soldier to maximum.
Upgrade all soldiers to maximum.
15.2%
Upgrade all soldiers to maximum.
Destroy 500 small boxes
50.2%
Destroy 500 small boxes
Destroy 1000 big boxes.
29.4%
Destroy 1000 big boxes.