Yes, it is. The wii has a built in electric pouch. When it is off it stores energy. Afterward when playing it it uses that electricity to run, instead if house electricity.
Its not recommended however it can be done.
There is 2 options: 1: Leave your GameCube on for 20 hours. How I would do that is go to any stage with your best character pause it and leave it on over night. 2: play 700 vs matches.
The last person of course is Mr. Game & watch and you can only get him by getting mewtwo with you get by playing V.S mode for 12 hours. just leave your gamecube on over night but it has to be 12 hours
yes
no
Your feet shrink
Yes
no
Yes ofcourse
leave it outside
Haha you can, but it might not be pleasant in the morning!
Yes.