Just as relentlessly stupid as the first adventure, but doesn't have the punch of the first one. There are noticeable drops in humor periodically throughout the movie, which makes for empty viewing sometimes. But it's great for an afternoon when you're bored.
It's definitely first and foremost a kid's movie, but it's also clever. I guess the main shortcoming of the film is that it just isn't as emotional and thematically mature as I hoped. I felt as if the film purposefully didn't give you any time to feel really sorry for Ralph by sticking in comic relief this way and that. That's what ultimately made it fall short of Toy Story. But despite this, it's an incredibly original and witty movie that deserves a watch even if you aren't a gamer.