Dragon Quest Monsters: Joker Commissioner Prizes Prizes are given out by the Commissioner's employees. These monsters will be given to you after you obtain the required amount of skills/monsters. Unlockable                                How to Unlock Empyrea Obtain ALL monsters Grandpa Slime Obtain 200 monsters Leopold Obtain ALL skills Liquid Metal Slime Obtain 100 monsters Metal Kaiser Slime Obtain 150 skills Metal King Slime Obtain 100 skills Robbin' Hood Complete both monster and skill libraries