I just beat Xemnas on Critical today (at 66, when normally in Proud I beat him as low as 37....) and now I'm curious as to what I should do next. I'm torn between attempting the Cavern of Remembrance and Lingering Sentiment (I'm probably way too underleveled). Until I can decide, I'm going through the worlds doing non-Mushroom event quests and puzzles and treasures and stuff. Am I ready to take on the Cavern? Do I have a fighting chance against LS?