Dynasty Warriors: Gundam 2 brings traditional hack'n'slash gameplay to the Gundam franchise. This iteration includes a greatly expanded selection of playable Mobile Suits, now including grunt units like Zaku and Jegan, as well as additional playable characters from the War in the Pocket , F91 , V Gundam , Turn A Gundam , Gundam SEED , and Gundam SEED Destiny . Another addition are fights against colossal size mobile suits such as the Byg-Zam and Psyco Gundam. The game's story mode recounts the events of Mobile Suit Gundam , Zeta Gundam , Double Zeta , and Char's Counterattack from the perspective of each series' protagonist through a series of levels and text interludes. Players can also select any pilot in Mission Mode, which allows Allies and enemies to be made based on who the player chooses to engage in combat.
In gameplay, pilots grow more powerful as they defeat foes, and they learn new skills from the Mobile Suit they use in combat. A Mobile Suit's stats are derived from its torso and four limbs, each of which can be replaced with better parts by destroying that model MS in combat. Players can also choose to play through nearly every Official and Mission Mode level in co-operative mode, or participate in competitive modes against other players.
The game features a comprehensive library containing information on all Mobile Suits, battleships, and characters in the game.