ok sure. i once tried to complete the tower of dread without using sprinkles. it was all going well until the dark king + queen (my cleric died, so there was nobody to revive or heal my other miis unless i used my life sprinkle[s?] on her).
Once when i was doing my tower of dread (2nd playthrough) we got all the way to dark sun, and when big bang came, it killed my flower :( and my cleric :( only me (theif) and a mage left. We... we failed.