Here is the full list of all 40 Midnight Fight Express achievements.
Kill 500 dummies in the Playground.
Mute the music.
Let 100 enemies kill each other.
Kill 150 enemies using weapon finishers.
Finish the game.
Shoot 500 enemies.
Kill 50 enemies using ground finishers.
Slice 75 enemies.
Kill 4000 enemies.
Kill 50 enemies using gun finishers.
Electrocute 100 enemies.
Get an S-Rating on 20 levels.
Complete the Alleyway mission.
Collect 150 golden teeth.
Kill 250 enemies using melee finishers.
Complete the Highway mission.
Kill 6 enemies while in Rage.
Blow up 50 enemy heads with secondary gun.
Kill 2000 enemies.
Defeat 15 enemies with different types of kills on a single level.
Complete your first 25 challenges.
Stick 50 sharp weapons into the heads of enemies.
Complete the Wavechase mission.
Throw 250 environmental items at enemies.
Kill 50 enemies using wall finishers.
Parry 150 attacks.
Spend 50000$ on clothes.
Kill 500 enemies.
Get 100x combo on foot.
Complete a level without getting hit.
Complete the Factory mission.
Die 500 times.
Get an S-Rating on all levels.
Complete all challenges.
Kill 75 enemies using explosives.
Escape from grapples 50 times.
Talk with all special characters.
Complete all levels on hard difficulty.
Complete all levels on realistic difficulty.
Damage 100 enemies using rope.