From IdleOn MMO Wiki
|Baba Yaga is an optional boss that spawns on the top of each hour in the Birch Enclave. To get there enter the portal next to the Birch Tree at Bored Beans.|
|Dr Defecaus is an optional boss located in the third area of the sewers. You will need to kill him to get the Job Application for TP Pete.|
|Also known as the The Wolf Golem, Amarok is the World Boss of Blunder Hills.|
|Deep within the volcanoes of Smolderin' Plateau, the divine Kattlecruk lays waiting upon his pile of bone.
As of right now, it does not drop the gem to get to World 6, the Spirited Valley.