How do you colmplete Spore hero arena?

Answer 1

You collect all for blue fragments on every seven planets then head to the arenas. But if you cant find it, you are supose to ask someone on that planet. Once your done you get eaten alive by a giant spore named Asteroid. Hes kind of like a giant air eel that breaths fire. In the belly, you play Hord and Hatch, chest: capture the egg, Mouth:Just a plain battle, Surface:collect three medals, then you battle a huge, powerful, tough, horned, and pretty skilled yeedo. He may be weak, and old, but wait for the end.

(Good Luck:)