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