 When used, bombs do two points of damage to everything on screen except hiding enemies, and cause all enemy fire on screen to disappear.H and S both have a double edged sword quality, demanding the player carefully consider when to pick them up; H releases a fleet of enemies on opposing sides of the screen, and S increases the jerkiness of the ship, making it impossible to maneuver or aim with precision.At the end of each level, the player is awarded additional points on the percentages of enemies destroyed and hostages rescued, as well as point bonuses based on secret achievements.