Eyes of Heaven 2 Concept: Doppio

Doppio is unlocked by doing STORY MODE
R1: Time Erase/Diavolo Transformation 
Easter Egg to Transform
You must find a "Recover all Cooldowns" item.
Time Erase then grab the item. 
"This is a test. I've accepted this test to stand victorious against my past. A person grows once they are able to defeat their weaker self. Wouldn't you agree, (Insert who you are locked on too)"