Power Fantasy achievements

As Misty, use your broom at least 5 times in one game.

Reach level 20.

Survive Nightmare 2 with two heroes.

Survive Nightmare 3 with three heroes.

Reach level 25 with Santa.

Survive 15 minutes with Zikk (Nightmare 3 difficulty)

Survive 10 minutes without taking any damage.

Slay 100 bosses.

Survive 15 minutes with Gundel (Nightmare 1 difficulty)

Defeat the Slime Cube.

Survive 15 minutes with Aric (Nightmare 1 difficulty)

Survive 15 minutes with Ember (Nightmare 5 difficulty)