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