In order to play these games you will have to jailbreak your idevice... Options available at apple jailbreak!

Whats App-   http://www.4shared.com/file/CQoJ5kgL/file.htm 

COD Zombies- http://www.4shared.com/file/Yc2qAty0/file.htm
Angry Birds Rio- http://www.4shared.com/file/3Mj_bfqi/file.htm
Fruit Ninja- http://www.4shared.com/file/XIwPy-FF/file.htm
Pes 12- http://www.4shared.com/file/QxXbV9Pp/file.htm
Nfs Undercover- http://www.4shared.com/file/Rh_uz-wJ/file.htm 

Installous(Get paid apps for free)- http://www.4shared.com/file/QqugN4T5/file.htm
Kung Fu panda 2- http://www.4shared.com/file/XBKSLM5F/file.htm
Street Fighter Iv- http://www.4shared.com/file/MDAEGEnF/file.htm
Sonic The HedgeHog- http://www.4shared.com/file/UzuZ40Tl/file.htm
Angry Birds- http://www.4shared.com/file/tbYviKlV/file.htm
Fight Night Champion- http://www.4shared.com/file/1Ndui0W5/file.htm
Real Racing 2- http://www.4shared.com/file/ugUKPqFc/file.htm
Ultimate Mortal Kombat- http://www.4shared.com/file/URTIs12n/file.htm
Gta Chinatown Wars- http://www.4shared.com/file/2q5vAHrt/file.htm
Dead Space- http://www.4shared.com/file/qNzHdyl4/file.htm 
Fifa 12-http://www.4shared.com/file/ym6DynJj/file.htm 
Infinity Blade 3- http://www.4shared.com/file/ph9SXucb/file.htm
Assassins Creed- http://www.4shared.com/file/9GcmxsqH/file.htm

You may have to sign up to 4shared to download these files...just sign up...it takes 1 minutes!