ON TOPIC:
Balloon Fighter's name is unknown. Even though he is referred to as "Balloon Fighter", because it sounds like a superhero name, it is actually the name of his occupation.
I really hope that Sakurai would not only add the characters' alternate costumes, but also alternate voice-acting with certain alternate costumes. That way, Sakurai won't have to create clones. What does this have to do with Balloon Fighter? I'm saying this, because I'm seriously hoping for this
female character, who is also a Balloon Fighter.
OFF TOPIC:
Basement Dweller, almost every title from Nintendo is good. I'm 100% sure that you would dislike every character I support, because they are all obscure, but they don't suck. If you want to see some titles that are extremely crappy, check out Angry Nintendo Nerd's videos on YouTube. CAUTION: They are not safe for work.
There are some NES titles that are obscure, but not crappy,
like these (Safe for work). Some other obscure, but not crappy NES/Famicom titles are Mystery of Murasame Castle, Ultimate Stuntman, Ginga no Sannin, Mach Rider, StarTropics, and Zoda's Revenge.
Next year, if Nintendo (or someone else) begins to reveal SSBB's entire roster, I'm going to listen to the Metal Gear Solid song from
this video, and as soon as it nearly ends, I'm going to play the middle part of
this video, where the two women open the case that has 5,000,000 dollars, while I'll slowly check out the roster simultaneously.