Ace Mode
Enter "WHATTHE?" on the passcodes screen

Cheat: Unlock Art Gallery
Enter "!KOOLART" on the passcode entry screen

Cheat: Unlock Black and White Mode
Enter "NOCOLOR?" on the passcode entry screen to unlock black and white mode

Easy Mode
Enter "WIMPIAM!" on the passcode entry screen

Freeplay Code
Enter "FREEPLAY" at the password screen to get free tokens for the arcade machine

Unlock Arcade Game
Enter RTJPFC!G, then TIMEWARP on the passcodes screen

Unlock Credits
Enter "LOOKMOM!" at the passcodes screen

Unlock Documentary
Enter "THEDUDES" at the password screen to unlock the documentary

Unlock Jedi Starfighter
To unlock the Jedi Starfighter, earn silver medals on all missions and bonus missions

Unlock Music Hall
Enter "HARKHARK" on the passcodes screen

Unlock Naboo Starfighter
Finish all of the Tatooine training missions during all four times of day by completing every objective and getting every hidden item

Unlock Slave I
Get bronze medals on all missions to unlock the Slave I.

Unlock TIE Hunter
Obtain a gold medal on all missions to unlock the TIE Hunter in the hangar

Hint: Easy Win on Defenders of Ralltir
On the Defenders of Ralltir level, fly low and pick up the concussion grenades with your snowspeeder's tow cable. Fly over to a bridge, stay low, and let the bomb touch the brige. It will explode, and all enemies on it will be destroyed. This can also be used against Imperial AT-ATs to destroy them

Tip: Training Mission
Playing the training mission at all times of the day can take time and listening to the dialogue on every objective can be annoying. If you want to skip the text and just do the objective then touch the symbol, when the text appears on the screen and the voice begins just pause the game, then press start again to return to the game. Now you can just do the objective without having to wait