The game is nice! Maybe a bit grind heavy because I did unlock Nii's real food last, but otherwise very interesting! Really like Nii's character. ^^
The animation scenes have some glitches with the initial scene flickering in frequently... especially the cimax scenes can't really be seen. But maybe you fixed this already in the meantime.
However, I'm unsure if I reached the end of the demo. I could not find the third stripe picture and only one of Nii's . Not sure if I made a poor decision somewhere... the secret section here says something like you need to do or not do something with Stripe, but aside from the buttons on the right I could not really find anything to interact with. also tried waiting for 1min on each scene...
I play on a tablet with keyboard, touchpad and touchscreen, with win10.