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