The video its 166 mhz, Frameskip2. NO z80 activated. U cant hear the drums in the Green Hill melody. (In spanish: No se escucha la bateria de fondo en la cancion de Green Hill).
The best Game in english is HER KNIGHTS: All for the princess.
http://www.insertcredit.com/reviews/herknights/index.html.
And other good graphicaly game its TOMAK: Save the Earth Again.