Bastian's marble run structures are becoming steadily more complex. He's taken to finding new ways to place the pieces, new places to put the marbles in, and added other types of blocks to build up rather than just over and out. It begins to extend half the length of the dining room.
He places some of the marble run pieces upside down and puts the marbles in the holes where they stay underneath. He also balanced ABC blocks in the half-pipe blocks.