

After that, the player chooses between Normal (pilot with high starting stats who can pilots EXAM machines like Blue-Destiny Unit 3) and Newtype (pilot with fast-growing stats who can pilot NT-exclusive machines like Nu Gundam). Campaign ModeUpon starting a new game, the player is first prompted to choose a faction based on the One Year War era (see below): The Earth Federation Space Force or the Principality of Zeon. In addition, familiar faces such as Amuro Ray, Char Aznable, and Haman Karn can be unlocked for player use, as well as some not-so-familiar faces (such as Ford Romfellow, Yuu Kajima, and Johnny Ridden). While not all inclusive of the entire infinitely expanding Universal Century lineup, this game still features over 200 mobile suits. In addition, there is also an "Additional" skill that activates when the character is at low health. Each character has a "Passive" skill that takes effect immediately with no activation required. By holding the SELECT button, and pressing a directional button, the partner will perform one of four actions: Perform Melee on the selected target, Fire on the target, Defend against the target, or perform their SP attack on the target. A new feature is the ability to command the partner.

"MS Tune Points" can be used to modify the stats of each individual mobile suit, such as turning speed, resistance to beam weapons, and radar range. SP can be used to perform a quick boost forward, perform an enhanced shot with a weapon, enter a powered-up state, or execute a deadly finishing move. At the bottom of the screen, an SP gauge fills. Mobile Suits have 1-3 weapons that they can switch between on the fly, in addition to a subweapon and a melee attack. The objectives generally consist of destroying every enemy that appears, although other objectives such as protecting spacecraft and delivering supplies occasionally come into play. GameplayAs mentioned before, the gameplay generally moves at a somewhat slow pace (although faster than many other Gundam games).

The meat of the game is its Campaign Mode, which lets you play through various scenarios from Gundam's "Universal Century" timeline.

Gundam, GBU is a slower, more sim-like take on Mobile Suit combat. As opposed to the arcade-styled gameplay of the Vs series of Gundam games such as Federation vs. Overview Gundam Battle Universe is the fourth game of the "Gundam Battle" PSP series.
