That rhymes! As long as you pronounce Z in the American way. Doesn't work in British. Yes: it also signals the interest of Tecmo Koei in the PC platform, which to be fair they usually steer clear of in favour of the console machines. The company has announced that Yaiba: Ninja Gaiden Z, their Unreal-powered cartoony zombie-slicing game about a Ninja with a cybernetic arm,…