What happened to the sixth air bud puppy?

In the "Air Bud" franchise, the sixth puppy, named "Buddy," was introduced in the movie "Air Bud: Spikes Back." However, in the series' storyline, Buddy doesn't play a significant role and is often overshadowed by the other five puppies. The focus primarily remains on Air Bud and his adventures with his human companions. Ultimately, Buddy's fate isn't elaborated upon in detail, leaving his story somewhat open-ended.