Super Smash Bros. creator says instead of making more "Americanized works," Japanese devs should "seek the uniqueness and fun of Japanese games"

Yes, please.

I have a lot of respect for some Western developers, and there also is a lot of trash that comes out of Japan, but I don't care about your photorealistic graphics or whatever emotional story your team of wannabe TV/film writers cooked up: Japan just does fun better, IMO.