Surprisingly, only the Japanese airing of today’s Nintendo Direct showed extensive footage of both versions of the game, as seen in its entirety below ripped by yours truly:
Sonic Toon JP Nintendo Direct 2014.11.6 Footage
To see the Japanese Direct in its entirety as well, click here (Sonic Toon appears at 26:23).
Both versions are due in Japan on December 18th, 2014.