I couldn't finish 'em. Looks like this's gonna get complicated.
The Undead Princess rests upon a construct crafted of bone, which holds a large scythe. Like all other undead, she is protected at first by a ghostly cloak that resists most attacks and may only be broken by a Cure, Raise, or Clear spell, or Holy to do damage at the same time. The Princess can swing the scythe in an arc to knock characters away, and can cause the Doom (status), using a countdown timer with a song if she catches someone while charging (escaping ends the countdown).
Bi-pyramid objects are only able to cast orbs. Even though they have high HP, they do nothing even if someone stands onto them, or if they are are carried (By Lilties or Special Equipment holders).
To stun her, the player must wait near a wall and wait for the Undead Princess to charge; if she hits the wall, she will fall and be vulnerable for a few seconds. She will also lose her cloak status. If frozen while stunned she'll recreate the ghostly cloak.