A Mobile game...

Few years ago when the mobile with camera and colour screen boomed and become cheaper I wished to buy one. Right after bring the mobile phone home, I have found when I enter into the game menu, the interface rotates ninety degree, and to play the game I have to hold the mobile horizontally instead of holding it vertically. This phenomenon shook me so badly that I have thought that the design of the mobile is faulty. I even wanted to change that mobile hand set, and the urge was so strong I even went to the shop! Later words, as the shop keeper informed me it is the style(!) and as I have read the manual and concentrated on their design issues it become so clear that I was thinking why they came with this solution so late!