Weekly Japanese hardware sales fell across the board once more, but PSP retained its place at the top of the chart by some distance.

Having outsold its nearest competitor, Nintendo's Wii, by 22,500 units the week prior, PSP sales came in at nearly 30,000 greater than those of the home console during the week ended May 18. Sales were likely boosted again by the success of Monster Hunter Portable 2nd G, which blue shelled Mario Kart Wii to reclaim the top spot in the latest Japanese software chart and pass the two million sales mark.

While DS software is selling extremely well in Japan, taking 15 of the top 30 chart places during the week in question, sales of the handheld fell 16,000 units week-over-week, although the system was only 6,500 units short of the Wii's total.

PS3 sales were only 700 units greater than those of its predecessor, but should pick up in the coming weeks as new bundle offerings appear closer to Metal Gear Solid 4's June 12 release.

Xbox 360 sold around 200 units more than it managed during the week ended May 11, but its total was still shy of 1,500.

PSP - 70,536
Wii - 41,572
Nintendo DS - 34,905
PlayStation 3 - 7,701
PlayStation 2 - 7,022
Xbox 360 - 1,474