This is a tool-assisted speedrun. For more information, see http://tasvideos.org/3288M.html. TAS originally published on 2016-12-23.
Muramasa: The Demon Blade is a trip through 16th century Japan with cool music, beautiful visuals and fast paced gameplay. Watch as the authors introduce you to Momohime, a young princess possessed by an evil spirit who proves quite adept at cutting everything in her path into tiny bits. As opposed to the previous run (http://tasvideos.org/2009M.html) this one no longer plays on post-completion Shiguri difficulty, saving nine seconds by avoiding the intro sequence that comes with it.
A run of Muramasa's second character Kisuke is available here:  Wii Muramasa: The Demon Blade (JPN) "Kisuke" by Bernka in 1:03:49.15 (http://tasvideos.org/3248M.html)