Here is the full list of all 11 Android John 2.1 achievements.
Use any function from the actor category.
Use any function from the boolean category.
Use any event from the event category.
Use any function from the float category.
Use any function from the flow category.
Use any function from the integer category.
Use any function from the rotator category.
Use any function from the string category.
Use any function from the vector category.
Use any function from the script category.
Complete the game.