
The one you saw on Wii U is Breath of Fire II. I'd say III is the best starting point, but since you'll probably have to find either a PS1 or PSP copy on eBay to play it (no digital distribution for that one in the US!) then II will do. If you have a PS3, PSP, or Vita, though, I'd go for BoFIV, which is available as a downloadable game. Other than certain thematic elements, the games aren't directly connected with one another so you're not going to miss out on any kind of overarching narrative.