From StrategyWiki, the video game walkthrough and strategy guide wiki
- Scenario Select: On the main menu, move the cursor to Scenario and hold , , and . Press and a scenario selection menu will appear.
- Special Menu: Watch through the introduction until "Press Start" appears. Hold and and press . You will now get a different menu from which you can view all Gaia windows, performs sound tests, and view the ending.
- Robots: Setting off an N-Bomb in a Nanotech city will destroy it, allowing the robots to escape and develop as any other lifeform. These lifeforms can survive anywhere and are not mentioned in the game's manual and are unavailable otherwise.