It was written by Vortex co-founder Costa Panayi who also coded the similarly styled Tornado Low Level.
While searching for the missing crates, the player may optionally earn bonus points by rescuing refugees from the islands.
[1] The position and progress of the cyclone can be monitored on the map enabling the player to determine when to vacate the area or when to carry out an emergency landing.
Lowering the helicopter's height while directly above a crate or refugee automatically triggers the winch which pulls them up to safety.
This allows the player to view the environment from the two different angles, essential as some crates are hidden behind buildings or terrain so can only be seen from North or South.