Tirek was just about to Kill Fluttershy but out of nowhere, Pinkie Pie stabbed him and killed him.
Queen Chrysalis was killed by a bunch of Bricks (Am i the only one who wanted Chrysalis to be Reformed?)
The Plot with Applejack being a Apple had no Plot at all.
Twilight went Crazy for no Reason and used Spike to burn Canterlot.
Oh, and Shining Armor was sent back to his old Job even though he quit...