One sunny day on Donguri Island, Twinbee & Winbee are buzzing about on patrol when suddenly they receive a message. It is Madoka from Dandelion Town calling for help. She is being chased and threatened by soldiers from the evil Donguri Army, who have been sent by her grandfather, Professor Mardock. The mad Professor had an accident (he banged his head on a pole) which changed him into an evil scientist, planning to take control of the world.

Twinbee & Winbee about turn and set off to destroy the Donguri soldiers. After 7 thrilling levels they finally arrive at the Mad Professor's headquarters, which they must destroy in order to save the world.

Collect the bell power ups. If you shoot a cloud, a bell appears. Keep shooting the bell and it changes colour and different colours give you different power ups. Use your special weaponry to shoot, punch and bomb enemies as you fly through 7 cute, colourful stages such as Dandelion town, with evil fruit and vegetables and Aqua Park with it's awful acid - spitting fish.

Two player simultaneous action! Use a swing - you - partner attack, share a life or play together in the couple mode for even greater enjoyment.