What is the ruling on games which are on the cellphones?
If they have pictures, then they are not allowed due to the statement of the Prophet sallahu alayhi wa salam:
لا تدع صورة إلا طمستها
Do not leave an image without obliterating it
[Saheeh Muslim no. 969]
Also, what is in it will busy from the remembrance of Allah. So avoid it.
Faisal Ibn Abdul Qaadir Ibn Hassan