iPod touch Will jailbreaking my iPod Touch 4G remove my game data?

Hello guys,

I've been wanting to jailbreak my iPod touch 4G for the longest time and finally researched how to do it. But during that time, I played countless hours on playing games such as Cut the rope, Angry birds etc.
If I back up my iPod, Jailbreak it, then restore using that backup, will my scores/game datas still be there?

Thanks.