Requirement to have whole game within a blueprint?

I am new to iOS development with Unreal 4 and I have been looking into Tappy Chicken. I notice all the gameplay logic, HUD and level are within one single blueprint. Is this a requirement for making a mobile game on Unreal 4? Can I separate the blueprints into multiple blueprints?

P.S. I am using Windows

No, it is not a requirement at all. Keeping everything centralized is just how Shane likes to work, but I’d recommend a more modular approach anyways.

Cheers,
Michael Noland

Thank you!