Full Guide: This video shows every possible grade that can be obtained in Bart's Nightmare for the Sega Genesis. Most of the endings are the same, though some have some minor differences in how the family reacts to Bart's grade. Still making the GameFaqs guide for this game, so it'll be some time before the longplay. Timestamps 0:00 No Pages 0:42 1 Page 1:50 4 Pages 2:46 All Pages Full List of Guides: