As a player So I can keep track of my score I'd like to enter a roll
As a player So I can focus on bowling I'd like the app to change frame automatically as necessary
As a player So I don't make a mistake I'd like the app to notify when I've entered a roll too large
As a player So I don't need to calculate myself I'd like the app to add bonuses itself
As a player So I can see my final score I'd like the game to finish after my tenth frame
