The entire bird invasion scene. Admit it, long-time fans: You never thought you'd see that iconic slingshot on the big screen. Seeing the carnage players have been inflicting on the pigs ever since 2009 rendered beautifully in full 3D is an incredible nostalgia trip.
Red, Chuck and Bomb find the eggs, locked behind a heavily guarded door. Red starts planning to take out the guards with Bomb, but leaves Chuck out because he doubts he'll be able to do much. How does Chuck respond? By tossing a bucket of paint over the pigs, covering the pigs in their own weapons' ammunition, and framing a pig by a bucket of paint and a plunger gun in his hand... all in the span of a single second.
Bomb finally manages to explode on command, not only taking out the pigs' airstrip, but releasing a massive shockwave in the process, just like the Short Fuse chapter from the original game.
Red willingly hurling himself back into the castle and the waiting clutches of the pigs just to save a single egg that had fallen out of the net. And save it he does - by setting off the mountain of TNT stored underneath the castle.
The attack is just one big Hoist By Their Own Petard moment for the pigs. Not only are the birds using the pigs' own invention against them, but Red may not have even had the idea to use the slingshot as a weapon in the first place if Leonard hadn't chosen to humiliate him by hurling him to kingdom come during the slingshot demo.
