Capcom explains Street Fighter X Tekken on-disc DLC - GameSpot

Publisher says 12 "downloadable" characters will debut on PS Vita, were included on 360, PS3 retail copies to save hard drive space, negate compatibility issues.
Fighting universes collide in this Tekken/Street Fighter crossover.

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Street Fighter X Tekken

Capcom defends, explains Street Fighter x Tekken on disc DLC

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Street Fighter X Tekken on-disc DLC: Crisis averted? – Destructoid