Miiverse said: このソフトをプレイ中はMiiverseを起動できないため、画面写真をコミュニティに投稿できません。

※ Newニンテンドー3DS / Newニンテンドー3DS LL でこのソフトを使用される場合は、プレイ中でもMiiverseをご利用いただけます。 Click to expand...

I hate to be the bearer of bad news, but don't expect a wealth of player screenshots from in-game for Smash Bros."Miiverse cannot be run at the same time as this software."EDIT: No Internet browser, either.According to the Miiverse community description, you'll be able to use Miiverse while Smash Bros. is running on the New 3DS."Miiverse cannot be run while this software is being played, so posting screenshots to this community is not possible. When using this software with the New Nintendo 3DS or New Nintendo 3DS XL, Miiverse can be used while playing."So basically, insufficient memory.Workaround: save in-game screenshots to the SD card, and upload the old-fashioned way.Region-lock if old.