Dear sir,
Though I am an experienced full stack developer, I will create videos for the application.
I have nexus 5 with latest "Marshmallow" update and will use "AZ Screen Recorder" to take the video of those highlighted parts of the game.
I promise reliability on project completion and perfection.
You can communicate with me anytime over phone, skype, gmail and freelancer, whatever you prefer. If have any question feel free to ask. I am happy to answer.
Thank you.
Shahriar Kabir