Green Flag to Start/Restart Left and Right to Move. Down to Shoot. Space to Bomb. pres up ero key Tips: Use the Left and Right Arrow Keys to move up and down, trying to move against a wall will send you to the opposite wall which you can use to jump over obstacles or preform a "Dragon Jump". Holding the Down key to shoot your Laser Shot, collecting power-ups will upgrade your laser until it becomes a Hyper Shot. Pressing Space Bar will wipe out all of the enemies (excluding the dragon). The Circles are the easiest to destroy, requiring minimal shots. The Squares take a bit more hits before being destroyed. The Exes are impossible to destroy without using a bomb. The Dragon will come in every once in a while and will zoom across the screen, destroying everything in it's path.