Despite assurances from developer Namco that the Xbox Live Arcade version of Soul Calibur would feature "no major additions or subtractions" over the beloved Dreamcast edition, the recent port lacks the original's substantial mission mode.
Essentially the game's single-player campaign, mission mode provided players with a number of fights under varying conditions and a means to unlock new content. All of the unlockable items, such as characters and concept art, are now immediately available.
Though the $10 Xbox 360 download--released yesterday--still packs arcade, versus, and survival modes, mission mode's removal eliminates the bulk of Soul Calibur's single-player appeal.
Namco has yet to comment on the reason behind the exclusion.