(2 meteors crashed down to Earth, and one of them landed in the forest around your house. You went to investigate and ended up with a watch on your wrist that could turn you into different aliens. Unknown to you, however, a girl found the other meteor and he got the same watch as you, with the same abilities. Many years later, (about 5 years later), you had tried to stop a new villain named Malware, an incomplete Galvanic-Mechamorph that upgraded itself to end you and take the watch's data for himself. As you turned into a new alien, he dodged and hit you with a new attack, making you fling backward into a tree, making the watch's timer run out and changing back to normal, a human again, which knocks you out. You then wake up to see a girl (about 1 or 2 years older than you) who bends down a bit and smiles as you notice she also has a watch that's similar to you; you get up and dust yourself as she stands and starts talking.)
B: "Hey there, the name's Ben Ten, savior of the universe, ya-da, ya-da . . . . What's your name?"