Soleron on 21 July 2009
You can go back.
The best partner is Vivian, especially Fiery Jinx. At some point in the battle, I think once the second part starts, you will automatically get three Shine Sprites in a row. Just before you get your third, use Supernova. Then you can use Supernova again. That's 30HP gone at almost no cost.
Then just use Power Bounce with as many Power Plus badges as you have, and Fiery Jinx to destroy the hands.
