I can confirm that this patcher is working on N3DSXL 9.5 emunand for Gateway! You need a unmodified rom of the game plus the xorpads. I was lazy, so I got the xorpads from a poster named Kohaku on a certain iso site (google the name). Kohaku even included the link to the unmodified rom file that he extracted the xorpads from.
Also, for the version 1.1 patcher, do I just patch over my existing rom or do I have to patch over a new and fresh rom? I want to keep my save from my existing one if I can.