Here is the full list of all 29 Alien Shooter 2 - there are The Legend achievements.
Complete all Micheal the Monster's missions.
Complete the game in SURVIVE mode.
Complete the game in SHOOTER mode.
Get 3 stars in all sector-3 missions.
Get 3 stars in all missions.
Create 50 items of equipment.
Create 30 items of equipment.
Get 3 stars in all sector-4 missions.
Complete the "Date with Kate" mission.
Complete the game in ARCADE mode.
Create 15 items of equipment.
Money earned: 5,000,000.
Get 3 stars in all sector-2 missions.
Get 3 stars in all sector-1 missions.
Complete all story missions in Sector №3.
Money earned: 2,500,000.
Complete all story missions in Sector №2.
Money earned: 500,000.
Complete all story missions in Sector №1.
Disassemble 75 items of equipment into components.
Kill 10000 enemies.
300 pistol kills.
Disassemble 50 items of equipment into components.
Disassemble 25 items of equipment into components.
300 energy weapon kills.
300 assault rifle kills.
300 shotgun kills.
Kill 250,000 enemies.
Create Legendary weapon.