I have the R4i sdhc revolution for ds. The box also says SDHC upgrade in orange and gives the url www.r4rts.com. I upgraded my kernel to 2.8 provided by that site and it lists 5264 as fixed compatablity, but I tried every copy I could find plus the xdelta fix, but nothing I did would get past the intro loop. I even tried the latest clean copies and still no progress. I figure I must be doing something wrong, but can't figure out what it is. This is the only game that has ever given me any trouble.