Godzilla Generations: Maximum Impact is a sequel to the Dreamcast launch title Godzilla Generations. Both are based on the famous Japanese movies series around the eponymous Godzilla, a giant dinosaur-like monster.

The game is a rail shooter like the famed Panzer Dragoon, where you move on a fixed path but can shoot in all directions to take down waves of approaching enemies. The game also features a dodge and a lock-on mechanic. The gameplay is divided in two kinds of levels. The first style features Godzilla rampaging through a Japanese city and taking down all kinds of military devices which try to stop him. The second kind of level is a fight between Godzilla and other giant monsters from the various films.

The opening begins with Godzilla swimming in the sea, then later changes to him attacking a city with MGR-IInd appearing with the military. It then changes to Space Godzilla and Destoroyah appearing over the city, then appearing with Godzilla continuing his rampage through the city while the military/G-Force attacks him. They eventually manage to knock him down only to have him stand up in the next second. Godzilla then destroys/crumbles a building (a few G-Force soliders can be seen running while the building crumbles). After, Godzilla begins to charge his atomic breath, after a few seconds the building is seen exploding and soldiers scrambling/running and attacking, Godzilla fires his ray up into the sky, then a black hit point shows up as the screen darkens, marking the end of the intro. There's no sound effects in the intro, only music.