Once again, Nintendo's Wii game console outsold Sony's PlayStation 3 by 3-to-1 in Japan in March.

Nintendo sold 265,542 units of the Wii in the five weeks to March 30, compared with 81,579 units of the PS3, Enterbrain game magazine said on Friday.

Sony sold 415,415 units of its PlayStation Portable (PSP) during the month.

Sales of Microsoft's Xbox 360, which is popular in the United States but is struggling in the home turf of Sony and Nintendo, came to 13,127 units, according to Enterbrain.