Years ago, Mortal Kombat co-creator Ed Boon said he?d be willing to entertain the idea of a Mortal Kombat and Street Fighter crossover. However, he made it clear that such a venture wouldn?t be easy. They are too different, he said; thus, no one would be pleased with the end result. Interestingly, according to Street Fighter producer Yoshinori Ono, Capcom once came to the same conclusion. In fact, the publisher even turned down a crossover proposal.
During an interview with Eurogamer, Ono was asked to confirm whether it was true that Capcom rejected Boon?s idea of a Street Fighter character appearing in Mortal Kombat. Ono noted that while this is indeed correct, he was not the one who killed the idea. In the interview, Ono explained,

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