I had also made the decision to not tell you about the multiple games of Haunted Mansion, but rather the highest score required, solely because I'd like to be keeping some of the quest a surprise! In my opinion, it is a courtesy to let you know what minigames will be required in the quests, as well as the scores, but I do see where you're coming from with regards to anticipating how long the quest will take. An option moving forward could include giving an estimated time of completion for the quest - meaning I can tell you how long it takes me when I test it out, if that would be beneficial for players!