Here We Go! - Introduction and Plot

Objective- It's a Mario game- Rescue the Princess! (Somehow, Nintendo keeps this from getting old.)
What is the plot of New Super Mario Bros. Wii? Well, it's Princess Peach's birthday, and, of course, the Mario Bros. are in attendance. In the background are large present boxes- with pictures of Mushrooms, Fire Flowers, Penguins, and Helicopter Mushrooms. Wait- why would anyone give the Princess Helicopter Mushrooms and Penguin Suits? It's not like she gets out of the castle much- on her own, anyway. Suddenly a large two layer cake comes in with stuff sticking out of it, like a bow and what looks like a small plant. The Princess approaches the cake and out pops the Koopalings and Bowser Jr! They pick up the cake and trap the Princess in it and take off in an Airship. The Bros., and Yellow and Blue Toad run after them, and the Toads pick up the Helicopter Mushroom and Penguin Suit presents, stuff them in a cannon, which blasts them into the air and they explode into many blocks which rain over the Mushroom Kingdom. The Airships drops off the first Koopaling, Larry, at the fort. We then find Mario at the start of World 1.