Help please
You can not “strat” a flash game. What ever it means…
This is not a flash engine. Flash is old and shouldn’t be supported in 2015 (personally).
The closest thing you can make is HTML5.
And you can do it with simply blueprints.
Learn How to get started with HTML5 Projects!
https://docs.unrealengine.com/latest/INT/Platforms/HTML5/GettingStarted/index.html
I hope it helps