Later in the game, prizes will be given out by the Commissioner's employees. These monsters will be given after you obtain the required amount of skills/monsters.
| Effect | 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.
|
