Here is the full list of all 36 Jigsaw Souls achievements.
Kuririn Copper
Prodigy Copper
Shinny Copper
Dungeon Master Copper
Eye Soup Copper
Shinigami Copper
No Pain no Gain Copper
One Jumpman Copper
Blessed Copper
Triangle Pizza Copper
Slime Pudding Copper
Stuffed Horn Copper
Kuririn Silver
Prodigy Silver
Shinny Silver
Dungeon Master Silver
Eye Soup Silver
Shinigami Silver
No Pain no Gain Silver
One Jumpman Silver
Blessed Silver
Triangle Pizza Silver
Slime Pudding Silver
Stuffed Horn Silver
Kuririn Gold
Prodigy Gold
Shinny Gold
Dungeon Master Gold
Eye Soup Gold
Shinigami Gold
No Pain no Gain Gold
One Jumpman Gold
Blessed Gold
Triangle Pizza Gold
Slime Pudding Gold
Stuffed Horn Gold