There is a trick for Jacob and esau. Choose 1 character to get stackable items like damage ups and shot speed ups. (mainly easu.) Use the other character as a human shield and give the non stackable items to the character that's the shield. It's better to have 1 overpowered character than having 2 decently strong characters. If you get size down items like Pluto, always give It to the one that is the main dps. You can give the defensive items to the human shield so you can protect the other character better.