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