OOHHH my ggooossshhhh, IT'S SO CUTE!!!!! 

I can so see Barry playing Flash and Captain Cold with Wally. Wally was a little kid and he didn't know Barry was Flash. One time Wally was playing it and he asked Barry "I wish I could meet Flash. He's my hero. Is he your hero too Uncle Barry?" Barry was so overwhelmed happy that when he went home that day, changed into his Flash outfit and went to see Wally. When Wally saw the Flash he geeked out, and Wally told the Flash he wanted to be just like him when he grew up. That was the day Wally's dream to be Kid Flash began. The day Wally became Kid Flash and found out his uncle was Flash, he remembered that day, and said to Barry, "Now you don't have to be Captain Cold." And Barry just laughed.

-Copper