9 out of the top 10 games sold in Japan in 2013 were on Nintendo platforms.
Nintendo shares plunge 17% after the recent announcements.
Japanese sales for the first full week of January plummet after high sales each week in December.
Nintendo lowers sales forecast from 6.8 million to a more realistic 4.3 million.
Here's a look at Japanese software and hardware sales numbers for the final week of 2013.
German retailer Media Marks appears to be clearing out inventory in Belgium with huge discounts.
Game analyst Michael Pachter thinks Wii U sales will stay under 20 million by 2016 - about half of PS4 sales.
Sales in Japan for the Wii U continue to rise week over week, with the largest jump we've seen yet.
Wii U sales have reached 4.3 million, according to a new report -- still a far cry from Nintendo's own estimates.
The Wii U is said to have sold 230k units in November, a substantial rise over previous months.
Wedbush Securities Analyst projects a 65% year-over-year drop in Wii U console sales.
Sales of Wii U games in the UK have reached only 650k units over the last 12 months.
A new analyst report being published soon lowers the expected lifetime sales of Wii U down to just 25 million.
New Wii Party U bundle causes a much needed sales spike in Japan.
Nintendo sold 300,000 Wii U consoles last quarter, fueled by Pikmin 3 and price cuts.
Toys R Us is currently having a big promotion on 3DS and Wii U games, offering buy one get one 40% off.
Software sales have been up for the last 4 months.