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Unlockable: Four Cases
Put in Gyakuten Saiban 2 in the GBA slot (this is in the Japanese version only).
Submitted by deez
Hint: Unlocking Cases
There are four cases total in this game. To unlock cases, you must successfully complete the case before it. Once a case is unlocked, however, you can go back to it and replay it at any time.

Submitted by Colin Moriarty
Hint: Saving
Remember that you don't have to wait until the end of a sequence (such as an investigation sequence or a part of a trial) to save your game. You can save your game, quite literally, at any time by simply pressing the Start button. This will bring you to the menu where your game can be saved. After saving, you'll be brought back to the start menu.

Addition by Mykas0:

This is a useful technique if you're playing without a FAQ or guide and don't know how to proceed with a certain case. If you know you're about to make a choice, present a piece of evidence, or are about to object to something with uncertainty, save your game. Then, proceed with the case. If the choice you made happened to be wrong, you can simply restart from your previous save and try again.

Submitted by Colin Moriarty
Easter Egg: Fresh Prince of Bel Air Reference
During the Maximillian Galactica case, you will hear a clown’s testimony. Amongst his testimony is an edited version of the Fresh Prince of Bel Air theme song from the television show.

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