You are the blue plane. Use the up and down arrows to control the speed, left and right arrows to control the direction. Space to fire a short burst. A and D to change the turn speed of the plane. X to drop a bomb. Kill the red plane. Don't hold down on space for more than you need to fire because then the game gets REALLY laggy.
I made this. To change the number of enemy planes, go to the scripts and select Sprite3. Then, change the hide block at the top to a show block and show the Enemy Health2. Then go to Sprite6 and change the hide block at the top to a show block. Restart.