I don't see why Retroarch wouldn't handle it, but maybe others know more info on this than I do.
So using the Kirby's Dreamland 3 Preset ID, the font looks correct! By, uh, doing this:
:(
Annoyingly, it came out on the Wii U VC in Japan, which means it
has an official Preset ID. It's just that nobody has figured out what it is yet. What we really need is someone with a Japanese Wii U to grab the game, then dump it so we can comb it for the ID and any VC patch Nintendo used. Chances are we need that VC patch too.