/vr/ - Retro Games

God the Famicom had so many, I don't know where to even get started. I guess off the top of my head:

Konami Wai Wai World 2 - Simultaneous two player Konami mash-up action! The music is sex.

Cocoron - Platform game with customizable characters, made by the original Mega Man team who later went on to make Little Samson.

Goonies - Technically not Japan only, as it appeared in arcade cabinets, but never released on the NEs, strangely enough. Good adventure platformer with 8-bit Cyndi Lauper!

Getsuu Fuuma Den - Amazing mashup of Castlevania and Zelda II gameplay, worth checking out (it's Konami)

Ganbare Goemon 2 - Not the first Goemon game on the Famicom, but this is where the fun really begins.

Layla - Stupidly hard Metroid like action adventure game with a similar sci-fi setting and female protagonist.