Cheat mode:
Enter SHPONGLE as a name to unlock all aircraft and levels.
Note: The effects of the code will be disabled if the game
is saved.
Use the following trick to get aircraft and be able to save
the game. Enable the "Cheat mode" code. Go directly to the
final mission of Era 3. Complete it and you will get several
aircraft. After the game starts over, insert a memory card
and save the game. It will save the aircraft that you won.
