Here is the full list of all 17 Kate's Test achievements.
Kill all the guards in the Lord's Castle.
Get the orb in the lord's castle without killing anyone. (you must get the clue first, or it would be no challenge.)
walk the path between the Lord's castle and the storehouse.
Find the treasury without reading the clue.
You know what you did.
Get all perfects on the tightrope challenge.
Unlock the bad ending.
Unlock the good end.
Beat the game without any failures.
Block off the hole in the wall.
Unlock the secret passage in the casino.
Avoid killing a guard for 15 turns.
Find a special way to die...
Power up the hero sword.
find the hidden plantgirl.
Buy the VIP Ticket.