All of the Made in Ore microgames have these things in common:

1. They all use only 1 screen.
2. They only use the stylus.
3. They are not bosses.
4. All of the action is touching; you never slide the stylus.

That means that I cannot even slide the stylus? /frustration/
Now I have around 30 (/guess/) microgames that fulfill ALL of these requirements...

Stylus-only is certainly fine by me, but I did notice as you mention that all the microgames I saw in the videos simply involved tapping something but never dragging or sliding etc. Now, I know that part of the core concept is that the games can be played on either the DS or the Wii, so that would necessarily restrict the input a little; I'm guessing that you just use the IR pointer and click with the A or B button to do the same thing as tapping on the DS. I don't see why dragging would be barred by this, though, as you could hold down the button and drag in the same way as you normally do on the Wii.

I am concerned that the input truly is restricted to tapping / clicking, and I hope we're wrong about that, but even if it is true you can find ways to work around it to create more complex scenarios.

Hey!
http://www.youtube.com/watch?v=_aY2ZVyATls
Look at the 3rd microgame (the one with the 3 grey triangles) in that video and watch the stylus. I am rather certain that that was a slide.

youre right!!

Never mind. That could be just a 2-D distortion of a touch.
Besides, all of the other Made in Ore microgames are controlled by touch...