It would appear so. But have no fear, as Namco has already said all character downloadable content will be free in the future.
Some eagle-eyed data searchers have spotted a bunch of hidden characters on the Xbox 360 disc for Tekken Tag Tournament 2 .
As you can see from the leaked pics, we should be able to expect Bob (or a thinner version of some kind), Miharu (Xiaoyu's peer), Lili's butler Sebastian, Lee's alter ego, Violet, good ol' Dr. B (Dr. Bosconovitch) and finally, the original Tekken Tag Tournament boss, Unknown. Now, it's true that these characters were found on the disc but they probably won't be unlocked in the retail version; they'll probably join the batch of future DLC characters, which include Michelle Chang and Angel.
Man, so many of those names bring back memories and I didn't even own the game. But people who well remember the phenomenon that was TTT understands what I'm talking about; that game was everywhere back when the PS2 launched. It was impossible to not be in a room where a bunch of people were playing it. Impossible. And by the way, the long-awaited sequel hits today, Tuesday.
Related Game(s): Tekken Tag Tournament 2