Hi there, this rom looks very fun, but I encounter some issues when I try to patch it. I've tried to patch multiple times original ROMs of Explorers of Sky (USA) with Alpha303, but it doesn't work. I've tried using xDelta, and it always tells me "unknow secondary compressor ID: XD3_INVALID_INPUT", which looks like the error message that pops up when the original ROM is not clean. Same with ROM Patcher JS... But I think I've made sure all the ROMs I tried patching were clean, some I even used to patch with other rom hack like Explorer of Hell.
Honestly, I've created an account here just to post this comment and hopefully get a reply on how to solve this issue, since I really want to try out this ROM.