It has all these problems that should have been addressed long ago:
1. Input lag. (WiiU, 3DS)
2. Blurry. (WiiU, 3DS)
3. Dark. (WiiU, 3DS)
4. Button layout is not exchangeable. (3DS)
Not changing button layout means that in Super Mario Bros., B is run and A is jump, on that diamond shape-like layout of buttons this is BAD. X button is also run, but it's not comfy playing with A and X. It should be Y and B, like on SNES.
As for dark, it doesn't matter much on 3DS because the screen can set bright enough, but on WiiU that's a lot more annoying.

The excuse is that the screen is stretched to match 4:3 aspect ratio. That's all good and nice, but why isn't there an option?
Has anyone ever played Mighty Gunvolt? That game is NES styled, and has the option to do 1:1 and 4:3. And it's not darkened. THAT'S how NES should be. Plus the fact that Mighty Gunvolt has no lag, but that's because it's not emulated.
Some people will argue that "Nintendo doesn't want to give you options so that you have to play only the way they made it by default."
But if that was true, the GameBoy VC wouldn't have 2 selectable color palettes or different screen sizes, including a 1:1 with a screen border even.
Some will even argue that the blurriness is to make it look more like the original NES because that console didn't look as sharp as an emulator on a modern monitor would. I think that's putrid BS, because any NES on my HDTV directly through composite or RF cables still looks sharper, nicer and brighter AND surprisingly has less input lag than the NES VC of the Wii U.
This is what MegaMan (NES) looks on the Wii U VC.

This is unacceptable. I can barely even see it on my computer monitor from how dark it is.
