Unleashed takes place twenty years after Godzilla: Save the Earth, beginning when a meteor shower causes climate shifts and earthquakes. Simultaneously, monsters of Earth begin attacking cities across the globe as a result of crystals growing on the ground. Factions form among the members of Earth as well as the monsters attacking them, totaling four monster factions.
Movement is done by the analog stick on the Nunchuk, and flicking it upwards allows players to jump. Flicking both the remote and Nunchuk allows monsters to grab nearby opponents or environmental objects, and throw them. Weapon and beam attacks also return, but are much less powerful and do not lock on, although they can be sustained for much longer periods of time. Rage Mode from the previous games is absent, but monsters can achieve "Critical Mass" by destroying the energy crystals found in arenas, which causes them to temporarily increase in size, glow red , and deal more damage.
Source: Wikipedia, "http://en.wikipedia.org/wiki/Godzilla:_Unleashed," available under the CC-BY-SA License.