I have not tried older builds, I'm fairly new to the scene so instead i went for an emulator mgba (i think it's called), fairly good results with some choppy audio in some scenes, other boktai games work fine on open_agb_firm though!
I tried this but is not working on the latest beta release of open_agb_firm. Also tried replacing 256k for 64k no luck.
If anyone found a solution, please share! Thank you.
All working on Japanese Wii U so far, (haven't tried sd caffeine or the cpgtr since i don't have a lot of storage rn?), but I'm still having issues with the hidtovpad working on a pdp controller for the switch.