Thanks to Sam Delaurentis, I have been notified that the patch does not work on the "newest" version of Samurai Pizza Cats, the verified rom in GoodNES 3.14. After checking out the game and finding only minor differences (two bytes, one of which was changed by MottZilla's modifications anyway), I created a new patch based on that version of the game, which should be easier to locate. I also updated the readme to mention the CRC of the game, and added a link to the tutorial page.
As before, you can get the patch here. There really shouldn't be much differences between the older patched game and this one. But better safe than sorry.