Players take control of Umi, who must save the city from destruction. The mayor of the city has received a warning from "Dark Emperor" that he has threatened to blow up the city if the ransom is not paid.
He has installed numerous bombs on some buildings in the city and you have to fly around the building to pick up the bombs and defuse them with the sprayer that is on the top of the building. You can only collect one bomb at a time, so once youve defused one bomb, you can collect another.
Each building has eight bombs planted and you have two minutes to clear each building. The buildings also have a set of enemies, such as planes, birds, balloons, UFOs and others that must be avoided.
Contact with these enemies costs you energy and the loss of all your energy ends your game. If all the bombs in the level are not defused within the time limit, the game is over, regardless of how many lives you have left. Certain bonuses can also be collected to increase time and gain extra energy.
Each level has new enemies and more difficulty to deactivate the bombs as the time is reduced, keep your energy high to be able to overcome this fun arcade and be one of the top 10 heroes that appear in the world ranking.