Here is the full list of all 35 Masked Forces 2: Mystic Demons achievements.
Player Level 30
Kill 400 enemies
Kill the Bone Dragon (Iceland)
Kill Bone Dragon in Hard mode (Iceland)
Kill Bone Dragon in Very Hard mode (Iceland)
Finish a Survival mission
Finish a Night Kill mission
Kill 300 enemies
Buy all masks
Player Level 20
Kill Xarudu (Underworld)
Kill Xarudu in Hard mode (Underworld)
Kill Xarudu in Very Hard mode (Underworld)
Kill the Skeleton Warlord (Rocky Heights)
Kill the Skeleton Warlord in Hard mode (Rocky Heights)
Kill the Skeleton Warlord in Very Hard mode (Rocky Heights)
Kill 200 enemies
Finish any mission in Hard difficulty
Finish any mission in Very Hard difficulty
Kill Gargoyle in Hard mode (Dunes)
Kill Gargoyle in Very Hard mode (Dunes)
Kill the Gargoyle (Dunes)
Player Level 10
Buy or upgrade a weapon
Change your skin on a weapon
Reach 50.000$ balance
Kill 100 enemies
Die :(
Survive the Invasion, Normal difficulty (Dunes)
Kill 50 enemies
Reach 10.000$ balance
Collect a gift in main menu
Win any game
Finish Find Artifacts mission (Dead Forest)
Kill one enemy