 Players also can pick up a weapon attachment that increases weapon strength and ability depending on the jet known as the S-Unit.The S-Unit can charge its strength and ultimately change its attack pattern when the players use the manual five-speed option whereupon reaching the jet's highest gear, the weapon will temporarily change to a homing weapon known as H-Unit mode.However, the S-Unit attachment can be removed and thus detonated once players hit the Bomb button.