Following Wednesday's Japanese top-20 ranking, Media Create followed up today with its weekly top-50 and analysis, of course focused on the launch of the new Nintendo Switch.

The firm's analysis argues that the Switch was on a similar scale as the Wii (it launched with 329,152 units sold in its first week, against the Wii's 350,000), and Wii U (that debuted with 308,000 units sold.

Yet, the attach rate (which is the number of games sold for each console) is 1.07, which is lower than that of Wii U, that had 1.22. 351,000 copies of Nintendo Switch games were sold last week, against 376,000 across 11 games for the Wii U's launch week.

Media Create identifies the reason for that in the lower relevance of third party titles. The Wii U launched with Monster Hunter 3 Ultimate, that sold on its own 106,000 units.

Debut third party sales on the Wii U accounted to 40% of the total, while they are only 25% this time around.

Speaking of third party games, some did indeed perform poorly sales-wise, falling out of the top-20 rankings. With the publishing of the top-50 we learn that I Am Setsuna ranked 22nd, Disgaea 5: Complete ranked 26th, Nobunaga’s Ambition: Sphere of Influence with Power-up Kit was ranked all the way down to position 44.

This places the three titles under 5,481 copies sold, which is the amount moved by the game ranked in 20th place.