Ok, so I've made a couple of edits to your agario program. The name input is now requested before the menu shows up, with the menu on the touch screen. However I (as of yet) didn't find a way for the game to show up on the top screen.
I have a few ideas
1.) let mass actually spawn
2.) make the screen move the same speed as the cell so the cell doesn't go off screen.
thanks--Nintendude