Gundam 2 puts you in the seat of a massive war machine, known as a Gundam, and tasks you with completing a host of different missions that usually involve destroying hundreds of enemies. Just like all the Dynasty Warriors games before it, Gundam 2 is very easy to pick up and play. All the Gundams have a standard attack that you can mash away at as well as a charge attack that can serve as the "finisher" for any particular combo. For example, hitting standard attack three times and finishing with a charge attack might execute one particular special move, while a different special move can be performed by only hitting standard attack twice and ending with a charge.
Each Gundam also comes equipped with an SP attack, which is the equivalent of a Musou attack in the traditional Dynasty Warriors games. This technique slowly charges up as you defeat enemy Gundams and it's usually the most potent weapon in your entire arsenal.
Besides these various attacks, all the Gundams can dash, strafe, jump and some can even transform into an alternate mode. This might sound like a complex battle system at first glance, but it's not. It's old and it's easy. You fly around and blow stuff up. You're not rewarded for/encouraged to use different combos.
Gundam 2 has a few different modes to its name. Official Mode and Mission Mode are very similar, as both let you select a pilot and then give you different missions to complete in a mini-campaign. Official Mode is supposed to be based off of plot lines from various Gundam anime, while Mission Mode is less linear and gives you a slew of different mission types to experiment with at your leisure. But of course, these missions rarely stray from the formula that's been around for ages: you move from zone to zone, destroying enemies in order to capture the zone for your own team. Occasionally you'll square off against an enemy officer, which is actually somewhat of a challenge, so enjoy this game Gundam Fans!!!!!