Initially set as the basis of a sequel, Asura's Wrath found itself underperforming commercially and lead to its planned follow up being sold as a 4-chapter DLC encompassing the story's 4th act. Various other DLC chapters were also sold, ranging from interquel chapters to battles against Ryu and Akuma, but this is the biggest piece of extra content available, and consequently, the one that drew the most ire. This was in the era of Capcom's on-disc DLC and blatantly gutting features or additions from games to make an extra buck, so for a game's true ending to be locked to DLC was seen as especially egregious, even when taking the circumstances behind the decision into account.

But holy shit, this legitimately elevates the quality of a game I already quite enjoyed by that much. The most insane finale to a title I've seen thus far, and one I can recommend to anyone curious for the wow factor alone.