The author usually doesn't indulge in making fakes, but just for this time round, the author made a few edits to the standard Pokemon Sun & Moon Demo: Greninja to showcase a few presently (as of 2020) unreleased details:
1. Shiny Ash-Greninja in SM/USUM
2. Pokemon GO Location Header in SM/USUM
3. Pokemon GO Icon in SM/USUM
4. Pokemon GO Mystery Gift receiving text in SM/USUM
Images in screenshots section.
edit: While GO symbol is now available from GO -> HOME transfer, GO symbol cannot be obtained in SMUSUM, as they cannot be transferred backwards.