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