Jaxi Skip
Jaxi Ruins Skip (also known as simply Jaxi Skip) is a speedrun strategy that allows Mario to quickly reach the top of Jaxi Ruins in the Sand Kingdom using a Bullet Bill from the nearby ruins, without needing to traverse the underground cave to get there.
Execution
The trick begins by capturing a Bullet Bill from the Tostarena Ruins and flying over toward Jaxi Ruins. In most speedrun categories that use this skip, players will collect the On the Leaning Pillar moon as the Bullet Bill on the way over to Jaxi Ruins.
The Bullet Bill should be crashed into a specific spot toward the right side of the western wall of the structure (pictured at right). This spot can be identified as the upper left corner of the face emblem on the corner of the structure. After the Bullet Bill explodes and Mario is forced out, wall jump against the wall. At the peak of the wall jump, cap throw and dive onto the top of Jaxi Ruins.
Alternate methods
There is another way to skip the underground area that does not involve the use of a Bullet Bill, although it is not as applicable in speedruns. It involves traveling around to the other side of the ruins where the two Jaxi statues are located and using them to reach a thin ledge partway up the structure, which can in turn be used to reach the top.
Usage in runs
Since this trick can combine 3 quick moons together with the use of the same capture, many categories use it.
Any% & Dark Side
This trick is present in all routes of these categories. It also allows the runner to grab the 50 coins chest which can be useful if they are including a shop moon in their route
World Peace
This trick is present in the beginner route for Sand Kingdom. Grabbing the checkpoint on the platform allowing you to come back after defeating Hariet in order to get closer to the entrance of the ice area where Knucklotec is.
The advanced route traded this in favor of Dram Strat while still grabbing On the Leaning Pillar and Inside a Block Is a Hard Place.
Darker Side
In darker side the second variation of this trick is utilised right after grabbing On The Eastern Pillar.