Easiest way to get this achievement, start a new game and complete the prologue. This only has to be done ONCE!
Save Cheat Trick:
Maximum Force powers Enter KATARN
Amplified light saber damage Enter LIGHTSABER
All Force Talents Enter JOCASTA
All combos Enter MOLDYCROW
1) Input Code Cheat Code (maxing stats)
2) Reach a known checkpoint (the game will auto save even though it won't be shown on the screen.
4) Exit to Main Menu.
5) Select Continue.
6) Save your game.
7) QUIT TO 360 DASHBOARDS AND RESTART THE GAME FROM THERE.
The game is still a bit difficult with this, however, it makes it do-able and doesn't really take the fun out of it, it takes the frustration out of it. Games are suppose to be fun!!!