
Certain devices from the original Ratchet & Clank make a return, such as the Swingshot, while others are new to Going Commando. The weapon is upgraded once the bar is filled, increasing its power and changing the design of it. Each weapon has a "growth bar", which increases when the weapon is used to defeat enemies. Going Commando introduces eighteen new weapons, such as the Blitz Gun, Seeker and Lava Gun. After completing the game, the player may also enter "challenge mode," which is more difficult, but the player starts with the weapons and health that they had when they finished the game the first time, and additional weapon upgrades are also unlocked. These games include arena battles, spherical world battles, hover bike races, and space races/battles. Going Commando also includes four types of "maxi-games", or minigames. "Bolts," the game world's currency, are primarily obtained by defeating enemies and breaking crates located throughout the game's levels. The player travels to planets in the "Bogon" Galaxy and completes main objectives and optional side quests. The player can also use gadgets to explore new areas. The player controls Ratchet from a third-person perspective and uses weapons to defeat enemies.

Also visible is the game's HUD, which displays weapon and health information, the progress towards upgrades, and available Bolts. Ratchet uses the Blitz Gun in a combat arena. Most critics felt that the game was superior to its predecessor and praised the game's graphics, gameplay, story, characterization and sound but criticized its unforgiving difficulty and minigames. Going Commando was released roughly a year after the original game and received critical acclaim, to the point of frequently being viewed as one of the best PlayStation 2 games ever made. The game features many improvements over the original game, such as the aesthetics and introduces many new gameplay aspects, such as weapon upgrading. The player controlled protagonists are seen in a third-person perspective the player uses various weapons and gadgets to defeat enemies and solve puzzles, while exploring planets, completing platforming sections and minigames, and progressing through the story. The gameplay of Going Commando is similar to that of the original Ratchet & Clank. The game follows Ratchet and Clank, joined by newcomer Angela Cross, as they attempt to unravel a conspiracy behind a mysterious "pet project," orchestrated by the shadowy MegaCorp.

David Kaye reprises his role as Clank while James Arnold Taylor replaces Mikey Kelley as Ratchet. Ratchet & Clank: Going Commando is the second game in the Ratchet & Clank franchise, following Ratchet & Clank and preceding Ratchet & Clank: Up Your Arsenal. Ratchet & Clank 2: Going Commando (known as Ratchet & Clank 2: Locked and Loaded in Australia and most PAL countries, or just simply Ratchet & Clank 2) is a 2003 3D platform video game developed by Insomniac Games and published by Sony Computer Entertainment for the PlayStation 2.
