Can I get Super Mario 64 for the Wii?

Yes you can but firstly you need internet . Go to wii shop channel click on virtual con sol and search for Mario 64 . you also need 1000 Nintendo or wii points witch will cost £7.

If you don't have the shop channel you just upgrade your wii (usually you can see what upgrade you have by going on to the settings page and on the top right corner you should see some letter and numbers. The letter tells what country its based for for example Japan - it i will show JP, you need at-least - upgrade for 4.0 or more for the shop channel.