Wii U sales skyrocket, and Nintendo expects more thanks to Super Smash Bros. - Polygon

Super Smash Bros. for Wii U will bolster console sales, continuing a trend that began earlier this year with the release of Mario Kart 8 and increased sales as much as 200 percent, Nintendo

Super Smash Bros. Creator Discusses Online Play Habits - Siliconera

Poll: Should Nintendo Follow Microsoft's Lead With A Wii U Price Cut?

Is Wii still making games?

Wii U sales skyrocket, and Nintendo expects more thanks to Super Smash Bros. - Polygon

List of major Super Smash Bros. Ultimate tournaments - Wikipedia

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History of video games/Platforms/Wii U - Wikibooks, open books for an open world

Nintendo's Shigeru Miyamoto Says Backwards Compatibility Is Easier Than Ever Before - IGN

Fun Sales Fact: One New Wii U Was Sold in September - IGN

Editorial: Super Smash Bros. Should be Integral to Nintendo's NX Future