Need suggestion for talking tom like application

Hi,

I am completely new to cocos2dx and have experience in native applications for iOS. I need to make Talking tom like game application for android and iOS. I need recommendation/suggestion, should I use Sprites Sheets(like plist files in cocos2d) for animations or I should use some 3d engine like unity…

I also have to implement video recording and share it on social media.

Thanks in advance…