- Normal - Players destroy everything in 11 stages as quickly as possible.
- Time Attack - Players cause as much damage as possible in a limited amount of time.
- Collected Coliseum - Through playing a mini game in a Visual Memory Unit (VMU) that was sold separately from the game, players can obtain monsters and pit them against each other.
- Generations Theater - Has various clips spanning Godzilla's history from 1954 to 1998.
There are five areas with eleven subsections in the game. They are:
- Fukuoka - The first area in the game. It has two subsections.
- Osaka - The second stage in the game which also has two subsections
- Nagoya - The third area that, like the others, has two subsections
- Yokohama - The fourth area that is also the last to have two subsections
- Tokyo - The last section which fittingly is the largest of all with three subsections
The military is present in this game like all others. Although here it appears under the name "Self Defense Force." There are eleven vehicles used.
- Super X - Flying
- Super X2 - Flying
- Super X3 - Flying
- MBT-92 - Ground
- MBAW-93 - Ground
- DAG-MB96 - Ground
- MBAW-93 (Upgrade) - Ground
- ASTOL-MB93 - Flying
- Type 89 IFV - Ground
- F-15J - Flying
- AH-1S - Flying
Godzilla Generations received extremely negative reviews, at least in the west. IGN's review, which was one of the first Dreamcast game reviews by a western source, slammed it for being tedious and simple. The graphics were also harshly criticized. GameSpot gave the game a 3.2/10, saying that the inability to block and the fact all the kaiju could heal made the game boring.
Fans have generally been much kinder to the game, since it's one of the few that has Minilla and Zilla as playable characters, and also one of the few games that allows free-roaming destruction.
- In the game, Mechagodzilla possesses the Heisei Mechagodzilla's roar, despite being the Showa incarnation.
- Likewise, Minilla has Baby Godzilla's roar.