Street Fighter: The evolution of Ken and Ryu

SNK vs. Capcom: The Match of the Millennium - 1999

Match of the Millennium is a quant Neo Geo Pocket Color game, and the first game to mash up SNK and Capcom characters. Don't let the simple art fool you, this is one of the most feature rich and popular handheld fighting games ever made.
The characters look a bit similar to the Karate Champ inspiration we mentioned in reference to the original Street Fighter.

Capcom vs. SNK 2: Mark of the Millennium 2001 - 2001

While the sprites in Capcom vs. SNK: Millennium Fight 2000 are ripped from Alpha, Capcom redrew Ken and Ryu for Capcom vs. SNK 2, and the resulting appearance is something like a combination of Alpha, SF II, and SF III. They are slightly thinner than their Alpha and SF III counterparts, and have slightly more twisted torsos in their ready stances. There's also a bit more muscle definition, and Ryu's hair is back to brown.

Trivia: Mark of the Millennium 2001 is known as "Millionaire Fighting 2001" in Japan. Why? Hell if we know.

SVC Chaos: SNK vs. Capcom - 2003

SVC Chaos was not received particularly well by the media, but what interests us is that it was developed by SNK instead of Capcom, meaning Ryu and Ken take on a never-before-seen style. The characters are darker, leaner, and haven't ironed their uniforms in some time.

SVC Chaos is also known for its strange dialogue, possibly as the result of poor translation.

Street Fighter: The evolution of Ken and Ryu

X-Men vs. Street Fighter - 1996

The trend of matching Capcom characters against those of other publishers would not be short lived. In this case, Ken and Ryu battle the X-Men heroes in their Alpha forms. While the actual character sprites aren't new, the visual grandness of their special moves have been upped to match the mutants' powers.

Above: A very large fireball

While the stories in crossover games are not part of the official Street Fighter canon, they generally stay true to the characters. Ryu is thanked by Cyclops before wandering away, you guessed it, in search of another challenge. Ken can be found with his son playing none other than X-men vs. Street Fighter.

Trivia: X-Men vs. Street Fighter is the first game to include Street Fighter characters alongside "tag-team" gameplay. The PlayStation port, however, does not feature tag-team gameplay due to memory limitations. Instead, the alternate character only appears during special attacks. The Saturn version (only released in Japan), however, is a true arcade port.

Marvel vs. Capcom: Clash of Super Heroes - 1998

While the art style of the character portraits is still pretty "Alpha-ish," the characters are in their post-Alpha garb. Marvel vs. Capcom is one of the only games in which Ryu appears without Ken along side him as a playable character. But wait - down, back, medium punch and...

Marvel vs. Capcom 2: New Age of Heroes - 2000

Ken returns as a playable character in Marvel vs. Capcom 2, though he is only available after unlocking. The characters are back to their pre-SF II look (Ryu with a white headband). The character art is oddly boyish - are these prepubescent versions of Ken and Ryu?