Tornado Mania Increase the size of the tornado by running over the small items and buildings. Destroying a building quickly increases the energy of the tornado, but it also alarms helicopters armed with dry ice to stifle your progress. The maximum size of the tornado depends on the happiness of your city. The happier the city, the larger the tornado can be. Engulfing a building - When the tornado is large enough, you can pick up the building intact by circling closely around it. Follow the gauge on top of the building. The green line reflects the loosening of the building's foundation. Once it has made a full round, the building will be picked up. In rampage mode your objective is to create as much havoc as possible. Run over the buildings to destroy them. After all the buildings have been destroyed, you will advance to the next level. Watch out for helicopters that will try to slow you down. The game is over when time runs out. When no keys are pressed, the tornado rotates in a clockwise direction. Hold down 5 to reverse the rotation. By varying the length and timing of the key press you can make the tornado move in any direction. Press the indicated softkey to pause the game. Use 2, 4, 6 and 8 or the navigation key to navigate the game menus and to move around in the biosphere view.