After watching the end battle again, I found it very funny that Niki, who should have no idea what's going on due to the fact that she's never met Sylar or Peter, grabs a traffic meter and beats the hell out of Sylar just for no reason. I'm also surprised that Peter wasn't surprised to see Hiro, especially since the only time they met (if I remember correctly) was on the train, and that was Future Hiro.