When the status screen appears and shows the date before your turn begins, press Up, Down, Up, Down, L, A, Z, Y. You can now Make/Allocate units on *any* hex; not just the ones adjacent to your territories. With this trick you can easily defeat the computer in a few rounds.
Create or allocate on any hex:
Press Up, Down, Up, Down, L, A, Z, Y at the status screen that displays the date before your turn begins.
Play either side:
Begin a battle and enter the systems menu. Select the "Sound" option and play sounds 5 and 66. An option to switch sides will appear under the options menu.
Begin a campaign mode game. Select the "Sound" option and set the "
BMG" to "5" under sound screen 3. Press C to play a portion
of each of the sound effects. A multiplayer mode selection will appear on the
Begin a battle and enter the systems menu. Select the "Sound" option and play sounds 5 and 66. Leave the sound menu, highlight the "System" option, and press Start, A, Down, A, X, Z, Start. The sound of a horn will confirm correct code entry. Cheat options, such as unlimited money and turns will appear under the options menu.
Options menu in campaign mode:
Begin a campaign mode game. Select the sound option from the system menu. Set BGM option to "5
". Highlight the "SE" option and pressC
to play all the sounds from 1 to 116 for at least two seconds each. Return to
the system menu. The CPU/User options menu is now accessible. This may be used
to begin a multi-player campaign game. Control of each of the forces in the
scenarios may be changed, just as in standard mode. UK
Hidden attack menu (Japanese version):
Press A on controller two when the statistics screen appears just before the animated attack sequence. A hidden menu that controls how the animated attack sequence appears will be displayed. The weather may be adjusted from Hare (normal), Yuki (snow), Ame (rain), or Kumori (cloudy). Multiple camera movements other than the default of "100" may also be selected from this menu.
Demo dinosaur control:
A dinosaur will appear during the eighth demo. Press X + Y + Z to pause the demo. Press the D-pad to move the dinosaur, and L or R to change the viewpoint.