if you're on my 3DS friends list (summoned super attacks are the kindest thing one friend can do for another).
Both games allow you to Street Pass with other players and gain bonuses from the interaction.
As a caveat: DQIX's sharing is much more cumbersome, and the chances of encountering someone currently playing and passing the game are incredibly slight.
But the spirit is there, and you can see how much Square Enix borrowed from its own game for Bravely Default. : Of course, where Bravely Default is steeped in Final Fantasy tradition, DQIX is staunchly Dragon Quest.
That means it has a much more traditional style, and the story is less of an epic quest and more a string of small, interrelated adventures.
It also features an impressively addicting alchemy system. most likely one of those aging big-box retailer chains that people use as a showroom for browsing before buying stuff on Amazon. : Well, Bravely Default started out as a sequel to 4 Heroes, so it stands to reason they'd be similar.
And if you manage to find other DQIX fans, you can fight through the adventure with a party comprised of yourself and three other players -- yet still a traditional turn-based RPG. The two games share a similar visual style (thanks to art direction by Akihiko Yoshida), similar skills, similar Job classes, similar music, and a similar old-school-made-new vibe. : If Bravely Default is basically a modern-day Final Fantasy V, 4 Heroes was a modern-day Final Fantasy III.
If you know your classic Final Fantasy, you know exactly what that means.
It presents many of the same concepts and mechanics as its successor, but in a less refined manner.
It has a very unconventional combat system reminiscent in some ways of older Dragon Quest games, where players don't directly target a foe but instead pick a command and the AI sorts out the details.