Up and down arrows to steer bomber, space to drop bombs. Targets are large black buildings with swastikas on them. Flak coming up can be seen as yellow dots so watch out. The object of the game is to survive until you come upon the targets, destroy them, and survive flying out of the danger zone. Always select a difficulty level before playing. Have Fun! Update: More Flak in Normal and Hard game modes. The bombs don't seem to be exploding online, but they will if you download it.