Thread:Thunder the Coyote/@comment-5688420-20200502071033/@comment-5688420-20200504065947

None. Not even in Karaoke Superstars. And it's not just licensing issues.

The Karaoke Superstars game engine didn't allow for speech recognition until 2009, when ACS completely redesigned the engine for the 7th-gen Karaoke Superstars reboot. This meant that rap songs, which typically hinged on lyrics rather than voice, were off-limits for most of the series' lifespan (and is also speculated to be the reason why Karaoke Superstars: Hip-Hop Hype was cancelled).

Funilly enough, the Japanese arcade-centric equivalent of the series, Karaoke Superstar (note the missing "s"), featured speech recognition much earlier, with the release of Karaoke Superstar MAESTRO in 2007.