The Beebots from the insect civilization of BEM are invading the Earth, protected by swarms of Killer Bees , and it's up to a swarm of white bees to stop them. The player controls the white bees swarm, trying to kill the Beebots by flying over them and stinging them. The longer the swarm flies over a Beebot, the slower it moves, until it finally stops and dies.
The Killer Bees are a threat to the player's swarm, as they will attack and gradually lose bees if left on screen for too long. They change colors from green (least harmful) to blue and then red (most dangerous), becoming stronger with each passing moment. The only defense against the Killer Bees is the bug-zapping RoSHa Ray, released by pressing the action button.
The player's goal is to eliminate all Beebots, earning points for each sting, zapped swarm, and Beebot killed. At the end of each round, a bonus is given, consisting of ten points per surviving bee, multiplied by the round number. The game features 26 difficulty levels, with each level presenting a new challenge.