Godzilla
Height: 80 meters
Mass: 50,000 tons

Version:
As he appears in Godzilla vs. Biollante (1989), although with a deep shade of green rather than the normal gray tone.

Role:
Godzilla is the main character of the game. He has second highest scoring icon on the slots, will participate in Wild rolls and the player will directly control Godzilla during the bonus rounds. In addition, following the conclusion of a bonus round, Godzilla will fire his atomic ray as part of an "atomic win" to tabulate the final points. Finally, the game also has a randomly occurring "Godzilla feature" that will turn 5 to 20 slots across both boards into Wild slots.

Mechagodzilla
Height: 60 meters
Mass: 40,000 tons

Version:
Kiryu is used, with a design closer to Godzilla Against Mechagodzilla (2002) but with powers from Godzilla: Tokyo S.O.S. (2003); however, the character has the Showa series roar.

Role:
Mechagodzilla is the main antagonist of the game. Kiryu has the third highest scoring icon on the slots and will fight Godzilla in the Godzilla vs. Mechagodzilla bonus game, where Godzilla faces off trying to get better slot rolls than Kiryu. The mech also appears in clips while the slot machine is idle, although footage is of the Heisei series Mechagodzilla from Godzilla vs. Mechagodzilla II (1993).

Mothra
Wingspan: 135 meters
Mass: 15,000 tons

Version:
The Heisei series Mothra appears, although her size is in proportion to the character from Mothra vs. Godzilla (1964).

Role:
Mothra has no icons on the slots, but after any reel spin the character may fly onto the reels and trigger the "Mothra feature" which transforms an entire vertical column into Wild slots to help make combinations and increase the winning amount by 2 to 5 times. The character also appears in clips from Godzilla vs. Mothra (1992) that display while the machine is idle.

King Ghidorah
Height: 150 meters
Mass: 70,000 tons

Version:
King Ghidorah from the Heisei series is used, making him the largest of the monsters in the game, although its roar is that from the Showa series.

Role:
The three-headed monster has the fourth highest scoring icon on the slots, worth the same value as Gigan. The monster is also featured in clips from Godzilla vs. King Ghidorah (1991) that display while the machine is idle.

Gigan
Height: 65 meters
Mass: 25,000 tons

Version:
The Showa series Gigan is featured in the game.

Role:
Of the five monsters, Gigan has the smallest role as he is only featured via an icon on the slots that is the fourth highest scoring icon, worth the same value as King Ghidorah.