- Skill Seeds
Go to the second desert island you can reach. Go into the bowl at night. There are three spawn points. One is next to a rock. Another is behind the tent. The third is on the side of the cliff as you climb down.

- Bonus monsters
Successfully complete the indicated task to get the corresponding monster from the Commissioner's employees:

Metal King Slime	Get 100 skills.
Leopold	Get all skills.
Liquid Metal Slime	Get 100 monsters.
Grandpa Slime	Get 200 monsters.
Empyrea	Get all monsters.
Metal Kaiser Slime	Get 150 skills.
Robbin' Hood	Successfully complete the monster and skill libraries.

- Completion bonus
Successfully complete the game and save when prompted. Continue from your cleared saved game file for a bonus dungeon.