How well do you know Super Mario Bros Z

This quiz is based on the series made my Alvin Earthworm and is not any of my work.

1 (Common Sense) Who made Super Mario Bros Z?
2 Who is the main villain?
3 Who gets crushed by Stuffwell in Episode 7
4 What color Emeralds are obtained by the main villain as of Episode 6
5 What Emerald did the group find in the Minus World in Episode 7