Star Wars: Rebel Strike - Rogue Squadron 3 Cheats

First, you run to the AT-ATs you're supposed to destroy/disable (use
the y button if you don't know/they are the bright yellow) when you
find one, run under it and push c-up (if you do it right, your person
will shoot up a black cord)then you push up on the control stick until
you go to 1st person view automatically (you can't see yourself) your
person will pull out a light saber. slash the AT-AT with it and then
press b. you should see little red crosshairs. aim it at the 
hole. repeat this with the other one but be fast (you're on a short
time limit, which i found out the hard way) when you've done that,
head over to the tower(look at radar) and go to the blue rebel sign.
then you'll get on some lizards. go to where the radar shows you to go
and kill as many storm troopers as you can(note: you get a laser
machine gun while on the lizard) once you get to your destination you
will get off the lizard. look for a stationed machine gun and press c
to use it(it would be a good idea to kill the troopers first) and
destroy all 3 of the
AT-STs(there's no auto-aim so it'll be a bit hard to aim. once you've
done that, your person will automatically get in an x-wing(there will
be a short little movie clip) now alls you have to do is destroy the
tie-bombers(they are in bright yellow) (by the way,if you didn't
already know, all mission requirements are in bright yellow) it's not
very easy(it took me a couple of trys to beat them)go for all the
clusters, don't take your time.

In the options go to the passcodes thing ok

After you swing across the pit by hooking onto the generators, follow through until you get to where a Storm Trooper is guarding a door. Defeat him and the door will open. Go through it, but do not go to the left to the Millennium Falcon. Defeat all the troopers that you can kill from the door's passageway. Then, go right to the wall. Duck so that the camera goes behind you. Look into the room with the Millennium Falcon. On the other side of the room, you will see Darth Vader and Obi-Wan in a lightsaber duel. If you go forward, you will see the movie scene of Obi-Wan being defeated by Vader.

Once you get a gold medal, a new list of requirements will appear. These are the highest scores the people at Lucas Arts received. If you can beat them, you will receive the Ultimate medal for that level. They look similar to the Ace mode medals in Star Wars: Rogue Leader.