secret Q-Stein base in Kierok Cave further north. Equipped with night gear, the player storms the base and kills the guards. The base is revealed to be a Q-Stein lab producing high-tech upgraded tank parts. The player steals the blueprints and attempts to leave, only to be stopped by the lab's guardian, Secondary Lieutenant Trenios, a six-wheeled armoured personnel carrier with a tank gun who moves with incredible speed. The player kills Trenios and heads back to Zambneal, only to be stopped by electrical beams forming an arena. An enormous experimental Q-Stein tank armed with tornado generators and a mine flail confronts the player, but it is destroyed. In Zambneal, the player is told by Major Rodeschild that the next stop is the Proton Kingdom's island neighbour of Nibelia, under blockade by the Q-Stein Navy. The player is ordered to equip himself with ocean drive gears in order to escort the troop carriers through to Nibelia. En route to Nibelia, the Protons are greeted by a mass of Q-Stein destroyers, aircraft carriers, attack jets, and torpedo helicopters. A fierce battle is fought, but the Q-Steins are defeated and Nibelia is liberated. In Nibelia, the player is personally thanked by the Nibelian King himself, and Major Rodeschild gives his congratulations. The player is then given the mission of clearing the way for an invasion of the Q-Stein Empire itself. Still equipped with ocean drive, the player goes to fight the only thing standing in the way of a seaborne invasion: General Skiseava, a massive battleship armed with gun turrets, a CIWS turret, ICBMs, and missile launchers. After killing Skiseava, the way is clear for an invasion. The player can now choose to attack first either the eastern town of Magscopic or the western town of Gloonstat. If the Magscopic mission is chosen, the player storms the headquarters of the Q-Stein Air Force and encounters the air force's director, Marshal Volzol, a Leopard 2 tank with heat-seeking missiles. Volzol traps the player on the runway of the airfield and fights the player alongside his crack unit of elite soldiers. If the Gloonstat mission is chosen, the Protons and the Nibelians launch a surprise night attack on the important Q-Stein port city of Gloonstat, where the remainder of the Q-Stein Navy is anchored. Under the cover of an aerial attack by Nibelian Heinkel 111 bombers, the player and a few crack Proton troops