Nintendo had a so-so stateside Wii U debut, but with 300,000 units chalked up after a week in Japan, it's become the seventh best hardware launch in that country, according to Famitsu and Enterbrain. Games selling well alongside the device include evergreen Super Mario, which tagged along to the tune of 170k units, while Monster Hunter rang up 110k titles. All that is a modestly successful debut for the console at home so far, considering that its more revolutionary predecessor became a monster hit after selling a fourth-best 370