text: The game introduced features such as the ability to purchase items, weapons and unlocking gadgets as the game progresses, which have become a staple of the series in following games. The first in this series does not feature the upgrade system of experience earned for enemies killed; instead, the player may purchase stronger, gold versions of select weapons using a combination of hidden Gold Bolt items and regular bolts after finding a secret area in the game.
  Going Commando
  Going Commando (also known as Locked and Loaded in Europe and Australia and Ratchet & Clank 2 in Japan) was released on November 11, 2003, in North America for the PlayStation 2.
  Mr. Abercrombie Fizzwidget, CEO of the Megacorp company in another galaxy called Bogon, hires Ratchet after the events of the first game, providing him with commando training in order to retrieve the "Experiment", an artificial creature stolen by an unknown masked thief while Clank is given a job as an accountant for Megacorp.
  The game takes place in a different setting than the first installment, this time in the Bogon Galaxy. In Going Commando, Ratchet is able to compete in hoverbike races and engages in spaceship battles. This game introduces the leveling system for weapons that appears in every succeeding game; using a given weapon frequently – and thus gaining enough experience – causes it to upgrade into a more powerful version with upgraded stats and new abilities. Ratchet's experience-based health upgrade system is also introduced in this installment, as well as the ability to strafe for greater shooting accuracy during combat.