The trailer for Touch Battle Tank 3D is hilarious to me. It goes on for super long, completely destroying any hope that there are less basic levels in the game. It explains the controls as if we had never seen them before and pretends they're original. It's horrible.
Perhaps. It's kind of funny, because the very first, introductory stage in Six Golden Coins is basically a "normal" Super Mario game. The only enemies you find in that stage are Goombas, Koopa-Troopas, and Pirahna Plants. And you only get the Fire Flower as your power-up; no Bunny Ears in that first stage.
It almost seems like the team wanted to ease players in with familiar console Mario gameplay first. .... also something interesting? That first stage? You enter in through a Mushroom. Perhaps it's a gateway to/from the Mushroom Kingdom?