It's supposed to be 4am though, remember? I think the vid where the puppet leans down and looks into the window is a bit of a giveaway. During the brief focus blur, the puppet looks wrong, particularly the hand on the roof, where the blue of the roof bleeds into the palm of the hand, even though the hand is apparently obscuring all the blue of the roof beneath it. It wouldnt be possible for that colour to bleed during the blur, as it can't be seen. That'd most likely occur when two separate blured images are composited.
Edit: Btw, obviously that's just a stab in the dark. I just think it's a hoax and am looking for faults.
Edit 2: Here's some more evidence. Everyone who has added a giant puppet video to YouTube has 1 month or less membership. Most of them exactly 1 month. They've all added a random crap vid, and their puppet video. You'd expect they'd either have been on there longer and added more vids, or signed up specifically to add the puppet video. Instead, they've all established a fake online youtube presence (with crap names that all have 4ever!! in the title) at the same time, with almost the same amount of content.
JessicaUSA4ever
fredrikice4ever
Iceland4everANDever
Call me Holmes. Fallout Holmes.