Lego Star Wars

On the Start menu type, Start, Start, Down, Right, Left, Down, Right, Left.

On the start menu type:

R,R,R,Start-for Blue
L,L,R,Start-for Black
R,R,L,Start-for Yellow
R,L,R,Start-for Green
L,R,R,Start-for Red
L,R,L,Start-for Purple

While paused, press R, R, L and Start.

Play throughout the game to unlock characters to buy in Freeplay mode:

Amidala - Complete Level 3 (Naboo City) in Episode I
Anakin - Complete level 1 of Episode II
Chewbacca - Complete Level 2 in Episode III
Darth - Maul Complete Episode I in Story Mode
Darth Vader - Complete Episode III in Story Mode
Dooku vComplete Level 1 in Episode III
Jango Fett - Complete Episode I, II, and III
Jar Jar - Complete Level 2 in Episode I
Qui Gon - Complete Level 1 in Episode I
R4-P17 - Complete level 3 in Episode III
Yoda - Complete Episode II in Story Mode

Pause while playing and enter DOWN, L, R, SELECT.