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