This needs to be done with
2 controllers.
Select "Super Blast" from the menu screen.
Choose 2 or more elements, doesn't really matter which. I went for Bomb Ball, Bad Shape and Max 2 Hits.
Add the 2 controller on the character select screen and then put it on the opposing team on the team select screen.
To make things faster, choose the following match settings on the stage select screen (press
).
Points: 11
Sets: 1 Set
Winning Condition: Fixed Top
AI Level: Very Easy
You can also finish off the rest of the Super Blast games like that (with Rematch), as it takes less time than playing against AI. After reaching 10 you'll get: