Curse of the Red Skull

As Pandora's Box has been opened, an anomaly has occurred. Three cursed red skulls have been scattered, and they are inside a golden cursed treasure box guarded by undead walkers. Find these three red skulls and put an end to it.

Yahaha:https://www.yahaha.com/app/spaces/274933569153

Minor update: Bug fix.

Replaced Lever Puzzle