It seems the world of Star Fox Adventures Speedrunning is heating up! Last month, JubJub62 beat his own record again, completing the game in only 4 hours and 26 minutes. Now, a new glitch has been discovered that can allow the player to skip almost all of the game, resulting in a run by Keanu Buze where Star Fox Adventures is completed in only 18 minutes and 46 seconds.
A couple days ago, an unexplained eight year old glitch was formally understood by the speedrunning community. As I understand it, the glitch allows data from one save file to be used in another save file under certain conditions after the player character reloads the scene (such as warping or jumping off a cliff). In one case, the glitch "Event Storage Warp" (ESW) will allow a user to skip from the first visit to the Walled City to the second visit, skipping all of the events between the two visits in a normal playthrough. The other glitch, "Reverse Event Storage Warp" (RESW), uses the same idea, but with the second save file containing the save of a nearly completed game. As a result, the glitch can allow the user to skip from Krystal's section of the beginning of the game, right up to the final boss.
For now, the speedrunning community is debating whether one or both glitches should be allowed in speedruns. Most likely, they will allow ESW glitches in standard runs and make a new category for RESW runs. With RESW (aka the Krystal Corruption Glitch), the game is now effectively "broken" in the same way that The Legend of Zelda: Ocarina of Time is broken (with it's current world record of 17 minutes and 9 seconds).