Mario game pop quizzes.

What's the name of mario's second partner in Paper Mario?
 
Which is the latest Mario game to feature a black hole in any form? (Don't count Smash Ultimate, that's not Mario)
 
Which is the latest Mario game to feature a black hole in any form? (Don't count Smash Ultimate, that's not Mario)
Super Mario Galaxy 2
What Greek letter is used to label Echo Fighters?
 
Mario Kart 8 and Mario Kart 8 Deluxe.

What name is Mary O. known as in PAL regions (Europe and Asia)?