The official Super Smash Bros Japan Twitter account has announced there will be a livestream of the 3DS game taking place on NicoNico later this week. On September 12 at 7pm (JST), just before the Japanese release, Super Smash Bros for 3DS will be streamed exclusively on the NicoNico channel – which you can view, here.
Those appearing on the stream will be journalists from Japanese magazines; Famitsu, Dengaki, and Nintendo Dream. For local streaming times, check out the list below.
US (Pacific Time): 3AM
US (Eastern Time): 6AM