If you are of a certain age and you think back to your first mobile phone, the chances are you used to get very excited about playing ‘Snake’. Yes, you remember it, it was the one where the snake (really a bendy graphic line that looked absolutely nothing like a snake if we’re being honest) was moved around the phone screen in order to eat things, a game that really exercised those fingers. Well now the Carphone Warehouse has updated Snake, making it smarter, brighter, sassier and fit for modern technology, and you can now win some very special prizes just for playing. Now entitled ‘Snake Retro’, the new version…