Slew mode:
Press Y in flight or before take-off. Then, press (F4) to increase altitude, (F3) to decrease altitude, (F2) to move forward, and (F1) to stop. The cursor keys may also be used to move the aircraft. Press Y to resume normal flight.
Fly faster:
Type bgry. The screen will freeze and red writing will appear. Press [Cursor Up] to fly quickly forward or [Cursor Down] to move quickly backwards.