In the game, players will do battle against G-Force as you rampage across Japan, encountering fearsome battles that will increase in difficulty. Fighter jets, tanks, and maser tanks will surround and attack head on from all sides. However the real brutes of G-Force are:
The Super X
The Super X2
The Super X3
and MFS-3 3-type KIRYU
The Super X will be armed with powerful weaponry, its most devastating weapon being Cadmium Missiles.
The Super X2, a more defensive Super X, will feature it’s iconic reflection mirror, a feature that can heavily damage you if you are careless in your assault.
The Super X3, will feature frozen based weaponry, while having its powerful Freezer Beam armed.
KIRYU: Serving as the strongest of G-force’s arsenal, built around the skeletal frame of the original Godzilla, is a multiple-purpose weapon, equipped with laser guns, missiles, and the Absolute Zero. (And armed with the menacing Drill Arm.)
Super X seems to be able to engage in battle alongside Kiryu in order to overpower you. Judging from the screenshots, you’ll probably encounter Kiryu a few times throughout the game.
It also appears that you can “Evolve" Godzilla within the game.
You start the game out at 50 meters, but you can become more powerful and larger, the max growth limit being 100 meters. A reach that is only obtained by absorbing more and more nuclear radiation throughout the game and evolving to such a state of power.