Here is the full list of all 40 Midnight Fight Express achievements.
Finish the game.
Get an S-Rating on 20 levels.
Kill 75 enemies using explosives.
Kill 150 enemies using weapon finishers.
Kill 250 enemies using melee finishers.
Kill 50 enemies using gun finishers.
Slice 75 enemies.
Kill 4000 enemies.
Damage 100 enemies using rope.
Kill 50 enemies using ground finishers.
Complete the Alleyway mission.
Shoot 500 enemies.
Collect 150 golden teeth.
Kill 500 dummies in the Playground.
Complete the Highway mission.
Electrocute 100 enemies.
Stick 50 sharp weapons into the heads of enemies.
Blow up 50 enemy heads with secondary gun.
Kill 2000 enemies.
Kill 50 enemies using wall finishers.
Let 100 enemies kill each other.
Complete the Wavechase mission.
Complete your first 25 challenges.
Defeat 15 enemies with different types of kills on a single level.
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.
Throw 250 environmental items at enemies.
Escape from grapples 50 times.
Kill 6 enemies while in Rage.
Mute the music.
Talk with all special characters.
Complete all levels on hard difficulty.
Complete all levels on realistic difficulty.