In my opinion Nintendo would be able to do be successful with little support. I say this because Nintendo games are virtually the reason why people purchase their hardware. Also Nintendo titles are consistent which would maintain their hardware sales. But its always better to have third party support so that can expand their user base and keep good relationships with the companies just in case they ever need them (Gamecube era). But if Nintendo really wanted to they would be able to accomplish major success on there own, however hardware sales would be slightly lower but still profitable.
People dont say lets buy a Wii for Sonic, or Raymen but instead buy the hardware for Wii Play, Mario, Zelda.







