Back in the day, Nintendo's seal only meant that it was an officially licenced Nintendo game, but a lot of young and naive gamers (such as myself) took it to mean that Nintendo personally made sure that it was free of most bugs and glitches, it ran fluidly, and it was a "quality" title by Nintendo's standards. Now more than ever, Nintendo needs to bring that back for the Wii U.
The requirements are simple. If you want to bring your third party game to the Wii U, your game must at least run at 1080p 30fps locked, 720p 60fps unlocked, 720p 30fps locked for open world games, or sub HD 60fps locked. No screen tearing. Virtually no bugs or glitches.
I used so say things like "I can't tell the difference between 60 and 30 fps." Now I realise that I've just been spoiled with exellent running games on Nintendo platforms. I bought AC4 for my Wii U, and it was a depressing mess. Glitches, screen tearing, slow down. I would have gladly sacrificed visual flare for a game that ran well, and I feel that many Wii U owners feel the same. I was really looking forward to Watch_Dogs for my Wii U, but if the game runs on the Wii U at all like AC4 (and I assume AC3) did, I will seriously find it difficult to justify the purchase. And considering that it's the same Ubisoft team making it, I seriously doubt it will run any better.
Nintendo seriously needs to crack down on how games are made for this platform, because right now, the only games that run up to stuff are exclusives with a few rare exceptions.
http://www.neogaf.com/forum/showthread.php?t=736354