Here is the full list of all 36 Way of the Passive Fist achievements.
Obtain all gold medals in all scenes
Clear 1CC Mode
Clear all Chapters on Way of the Master
Clear Arcade Mode (10CC or 1CC) without dying
Clear 10CC Mode
Complete Chapter 7 in under 20 minutes
Accumulate 400,000 XP across all Chapters
Parry 10,000 attacks
Find a 1-UP item
Play through any Chapter twice in a row
Defeat a boss without taking damage
Clear Story Mode
Defeat the final boss
Defeat at least 5 enemies at once with the Gravity Well attack
Discover 20 different caches
Defeat 100 robotic enemies
Obtain all gold medals in a Chapter
Find the turtle soup healing item
Perform the Gravity Well attack
Defeat the boss of Chapter 7
Defeat 100 plant creatures
Achieve a combo of 100
Defeat the boss of Chapter 5
Complete any Chapter (1-9) without activating a checkpoint (in Story Mode)
Defeat 500 enemies
Defeat the boss of Chapter 3
Perform a Super Slam attack
Defeat 100 sun worshippers
Achieve a combo of 50
Perform a Power Punch 5 times in a single scene
Achieve a x5 multiplier
Defeat 100 enemies
Defeat the boss of Chapter 1
Perform a Power Punch attack
Parry 100 attacks
Obtain a gold medal in any scene