Why the heck do people care so much if Buddy was only taught basketball? I mean seriously it doesn't matter! Maybe that's why you people think that the fourth movie was bad. I just watched it again and I still love it. Besides if you pay attention, the scientist guy says he wants to steal the super sports gene of Buddy's and his puppy's' and maybe that's how he learned the other sports. Use your imagination, jeez. After I saw the second and third and fourth movies for the first time, I had completely forgotten that the dude only taught Buddy basketball. Just enjoy the movie, don't pay attention to stuff like that because if you do it ruins the movie and you don't like it. If you just watch the movie but don't think about the others, it's enjoyable. In fact, my family enjoyed the first movie so much that we had gotten our first golden retriever, and a golden retriever puppy. Now, that retriever puppy is 4 years old and we have another puppy who just so happens to be a lab. All of this happened because of the Air Bud movies so that just goes to show how good this movie really is. Another reason as to why people didn't like the movie is probably because that's not their favorite genre of movies. People should stick to their favorite genre and comment on those movies not movies that they hate!!!