Master Fortress is only available in single-player mode.
☆ NintendObs Weekly – Monday, November 10, 2014 – Sunday, November 16, 2014.
Pic of the day. Playing Classic mode with two players means you can battle the Master-type opponents together…but your opponents will also be powered up. The foe in this picture is Master Beast.
The Wii U version-exclusive Master Fortress is only available in single-player mode. You’ll need to attack its heartlike cores.
— Sakurai (NNID: SakuraiMasahiroA)
Source: Miiverse.
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…
…Wanna play? Buy a Wii U.
And if you’ve already got yours, click on Super Smash Bros. for Wii U for everything you need to know about the game. 😀
