Mission Complete

I was curious how the first 10% is determined when you complete a mission? Also, if I’ve recieved the gold egg does that mean I’ve completed it? Or do I have to clear all the levels or something?

Yea u completed the OM , but you wasnt in the 10% so you didnt recive the monster reward .

Thank you. Is there any value in going back to the mission after I’ve completed it?

Yes! U can rush through the floors without defeating bosses to claim the arkadion and after that go back to defeat THE bosses to get the prizes