transfering apps (noob question)

[Killax]

ok so i rooted my phone and had been playing a game for quite a bit but i can only continue my progress on the default boot. how do i get the game data to my custom ROM?
sry&thx

 

[etgarcia]

myBackup I think is software to do this.

 

[O.a.T.]

ok so i rooted my phone and had been playing a game for quite a bit but i can only continue my progress on the default boot. how do i get the game data to my custom ROM?
sry&thx

Titanium backup; free version works fine to restore app + data.