This is a tool-assisted speedrun. For more information, see http://tasvideos.org/3260M.html
Banjo-Kazooie stars the bear-bird team of Banjo and Kazooie, who are searching for Jiggies, or Jigsaw puzzle pieces, to unlock doors and save Banjo's sister from a rhyming witch. Even though Banjo's name is first, Kazooie ends up doing most of the heavy lifting as new skills are developed.
In this run, Hyperresonance collects all 100 Jiggies hidden throughout the game.
This is an improvement of 24:40.71 over the previous movie (http://tasvideos.org/1277M.html). This was possible with overwhelming route changes (and much better route planning ahead), a myriad of new glitches and tricks, and much more optimized movement. This movie loses some time to loading zones on BizHawk vs Mupen (about 2 minutes), so the final time is not quite indicative of how good the run is. With console like loading zones, this would be a 1:57.