The game cannot be saved when non-costume codes are enabled. To bypass this, enable the code on a level that has an auto-save point. After reaching that location, intentionally die or press Start.
IF this game was really good like batlefront or kotor it would have sold 3.5 million. Give me battlefront 3 or republic commando 2 enough of this starkiller non canon and lego shit.
Gotta love how this sold and still is selling better then the PS3 version, but Wii was left out of the Ultimate Sith Edition, it's pretty sad when they don't even give it a chance ...