The PlayStation 2 installment of the series introduces 60 frames-per-second graphics, making GGB a visually splendid treat for the eyes. The FPS rate comes at the cost of slightly bland textures, but a decent polygon count and intricate design of most of the mech models makes up for it. The levels in GGB take you to a variety of environments, from desert to mountains to fields, and challenge you to adapt your battle strategies accordingly to succeed, instead of simply charging around blowing up everything in sight.

Of course, you could do that--GGB is at its best a cacophony of explosions, gunfire and the heavy stomping of mechs. The gameplay is fast-paced, but also easy to control, thanks to the customizable layout. The analog sticks are set to movement and aiming by default, which works very well. Shooting, strafing, jumping and other vital commands are assigned to the shoulder and symbol buttons, allowing GGB to be played as it was meant to be--smoothly, without the need to constantly check which button does what.

The game, while short, offers a lot of fun and variety in its six missions. The missions start with a training mission, and the difficulty builds gradually up until the last level, never becoming unfair or cheap--but still remaining challenging. Each mission has a briefing, and there is in-game waypoint changing and radio chatter--but unfortunately the chatter is usually too low volume to be heard over the gunfire and explosions.

Overall, GGB does not have much in the way of storyline--a continuation of the previous Gungriffon games' post-apocalyptic military scenario--or extras, but it doesn't need those things. It is extremely fast and fun and easy to play, and it is a solid title worthy of buying.