7888-1 (Inv) The Tumbler: Joker's Ice Cream Surprise 436 Parts, 3 Minifigures, 2008 Sets: Batman I
* Add 1 Part 54200 White Slope 30 1 x 1 x 2/3 (Extra)
* Change {3 to 2} Part White 54200 Slope 30 1 x 1 x 2/3
Comments from Submitter:
Just went through the pieces of my broken down set and there were only 2 white cheese slopes. The instructions also only list 2 white cheese slopes. I can only assume that the third in the original count is an extra piece.