Yeah, the Wii U version doesn't get a retail release in North America, though it does in Europe and Japan. I'm really surprised they think the Vita version has the potential for a successful limited retail release and the Wii U doesn't, but oh well…
I guess they saw more potential in the Vita than in the Wii U.
A translation of the SBK2. Not polished/edited the translation is rough and just if anyone wants to know what they are actually saying:
Usopp+Chopper: Welcome to SBK Unlimited Red,Part 2.
Usopp: SBK stands for: Shounen (Youth), Bouken (Adventure), and K!
….Wait a second what was K again?
Chopper: You don't remember?!
Usopp: Anyways,this is our next long-awaited adventure. Follow me!
Chopper: I'll do my best!
Usopp: Now let's see what awaits Luffy and his friends.
Chopper: But didn't you just say to follow you...?
Chopper: Uaah, What's that thing?
Usopp: It's a dragon! But that one's smaller than the one I've beaten.
Chopper: You beat one Usopp?
Usopp: About 5... no wait 10 times.
Chopper: 10 times?! Amazing!
Usopp: I can take on anyone!
Usop: Great. This worked out just as I planned.
Chopper: Eeh?!Really?
Usopp: Anyways let's explore the city and step forward.
Chopper: What's this?
Usopp: Be careful. There are many different kind of traps on the field.
Chopper: Huh, if you burst the bubble something comes out?
Usopp: There are many different items on the field. You can take the items you found and bring them to your own facilities you've built.
Or you can use them for the development of the city as well.
Chopper: So I can use medicine, food and many other items, right?
Usopp: Exactly!
Chopper: Wuah!
Usopp: If a Devil Fruit Eater falls into water it means his end for sure. That's why you should never push...
Usopp: Didn't I just tell you not to push?
Chopper: But what can we do? I want to go ahead.
Usopp: In such a case you can ask someone on the crew for help.
Chopper: Amazing.
Usopp: Brook for example can run on water. Everyone has some special skills which can prove to be very useful.
Chopper: I can also be useful to you guys. With my horn point I can dig out things!
Usopp: But I won't lose to you either Chopper. With my skill I can attract bugs.
Choper: The miraculous Golden Hercules. Please catch him!
Usopp: You have to press the buttons quickly. If you succeed you have a succeful catch.
Chopper: Uoh!
Chopper: Oh no, it escaped ;(
Usopp: That's why you should go with your friends on bug hunting. This way it will become easier.
Chopper. Oh!
Usopp: If the level of your bug catching net is high, it gets easier to catch various bugs.
Chopper: What's that? Fishing?
Usopp: Fishing on the field is another special feature.
Chopper: You got it!
Usopp: This one's easy. Nyanyanyanyanyan.
Chopper: You got it.
Usopp: There's a chance if you got it, that you might get a bonus. I wonder what kind of size we will get.
Chopper: Oh no it escaped. Maybe you should just stop it.
Usopp: Shut up! If you can't do it on your own, let your friends help you and also you can make your fishing rod better at the city and you can even get such guys.
Usopp: All right, a big adventure awaits us.
Chopper: Will we be all right? This is the Navy Headquarters.
Usopp: What are you afraid of Chopper? We can take on any...
Usopp+Chopper: He's here!IYAAAAAAAAAA!