Super Mario Galaxy 2 has already been acclaimed as one of the greatest games of all time and the Japanese game-buying public certainly seems to agree, snapping up over 340,000 copies of the title in just three days.

Outstripping the original's first week sales of just over 250,000, the stellar sequel rocketed to the number one position in the country's charts, quadrupling the sales of the number two title Super Robot Wars OG Saga for DS.

With the European launch countdown now at T minus eight days it's not long until gamers across Europe can aim to propel this to number one there too.