What do you mean "welcome back Japan"? Japan as a whole has been more into portable gaming systems since the Game Boy. Fact. The GBA and DS were super popular in the Japan. It's telling that they liked the PSP but don't give two shits about the Vita. The 3DS is the current "thing", but Japan also pretty heavily supported the Wii.
It's no mystery why Japan wasn't as strong on N64. It's because Japanese gamers really love rpgs. Third parties were retarded and put hardly any out on N64. End of story.







