Nintendo UK has announced that to celebrate the launch of Pokémon Gold and Pokémon Silver on the Nintendo 3DS Virtual Console, GAME FREAK Director Junichi Masuda's Mii character will be available in the StreetPass Mii Plaza.

StreetPass Junichi Masuda wearing gold trousers!

To celebrate the launch of Pokémon Gold Version and Pokémon Silver Version on Nintendo 3DS family systems, a special Mii character is heading to a StreetPass Mii Plaza near you!

Until October 22nd, Pokémon Sun and Pokémon Moon producer Junichi Masuda will be available in the StreetPass Mii Plaza – he'll also be wearing a pair of golden trousers to mark the occasion!

Pokkén Tournament DX is available in stores and as a downloadable version from Nintendo eShop on Nintendo Switch. Pokémon Gold Version and Pokémon Silver Version are available from Nintendo eShop and in shops as packaged versions containing a download code.

Source: http://www.nintendo.co.uk/News/2017/September/In-shops-and-on-Nintendo-eShop-now-Pokken-Tournament-DX-Pokemon-Gold-Version-and-Pokemon-Silver-Version-1282128.html