Sorcerers of the Magic Kingdom - Ursula Battle - Fantasyland

Ursula Battle - Fantasyland
Sebastian serves as the guests' guide in this mission. He tells of how Ursula has made a comeback when Hades pulls her from the River Styx to help him out on his conquest. But she plots to double cross him and plans to use the crystal piece she finds for her own plans and, with the aid of Flotsam and Jetsam, intends to break down a sea wall to flood Cinderella Castle and the rest of Fantasyland.
The guests, along with Sebastian and Ariel, manage to follow the sea witch to a shipwreck, only to run into Flotsam and Jetsam. After defeating the eels and moving to the next portal, Ursula sends Glut after the guests. After defeating the shark, the dark magic left behind allows the guests to track the sea witch, only to find Ariel trapped in the flooding castle. Merlin arrives to help, only for him and Sebastian to realize she's an imposter, calling on the guests to use the Sorcerer's Crest to expose the charade. Ursula is revealed and laughs at Merlin for falling for her trick. She then tries to attack the wizard, but he manages to disappear out of the way before she can hit him, forcing Ursula to head back out to finish her task, claiming that she's only getting warmed up.
While Merlin tries to handle the flood, the guests are left to confront Ursula. While searching for the crystal and ignoring Hades' calls in a crystal ball to drain the castle, Ursula battles the guests, disappearing upon her defeat and eliminating the flood. Merlin, Ariel, and Sebastian then congratulate the guests from the castle moat before Merlin gives the guests their next assignment.