1. In case you want to know, there are only 7 Chaos Emeralds per Episode. That means you won't have your Chaos Emeralds from the previous Episode, but you will still have the amount of Chaos Emeralds from the previous Episode.
2. Number 1. talked about that there are only 7 Chaos Emeralds per Episode. But, if you collect all Chaos Emeralds in the game, you will unlock a True Final Boss!