From the Super Mario Wiki
Alyssa Milano is a human in Mario Ice Capades. She is one of the two hosts (the other being Jason Bateman) in the show. Alyssa Milano has never played video games before and Jason Bateman explains the plot of Super Mario Bros., while other people play the game. However the game is interrupted by King Koopa who plans on infecting all computers with viruses. At the end of the Ice Capades, she announces that she beat Super Mario Bros. (though it appears that she didn't play at all).