There is a reason that the DS face hasn't been uncovered which must be extremely important or else it would have been revealed like VAT's all were even though if you think about it they didnn't have to be. Aqua's helmet was smashed, Ven's broke when falling from the cliff, and Terra ripped his off. All were somewhat unecessary, I would at least wear a partial helmet than none at all. My feeling is that the DS has the appearance of someone we already have seen. Terra anyone?
Definitely. I like how you think. We have basically the same ideas on all these crazy theories. XP
But him looking like Terra WOULD explain why Terra was shocked when the DS's helmet was knocked off. I don't see what other reason he could have for being that shocked. =P