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Godzilla: Monster of Monsters!

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Title Screen

Godzilla: Monster of Monsters!

Also known as: Godzilla (JP)
Developer: Compile
Publisher: Toho
Platform: NES
Released in JP: December 9, 1988
Released in US: October 1989
Released in EU: 1991

CharacterIcon.png This game has unused playable characters.
MusicIcon.png This game has unused music.
SoundtestIcon.png This game has a hidden sound test.
RegionIcon.png This game has regional differences.

PrereleaseIcon.png This game has a prerelease article
BugsIcon.png This game has a bugs page

Go go Godzilla! There goes...uhhh, Jupiter?


Read about prerelease information and/or media for this game.
Prerelease Info
Read about notable bugs and errors in this game.

Unused Characters

In addition to Godzilla and Mothra, two other monsters were intended to be playable at one point, but were cut for unknown reasons.




Anguirus (known as Angilas in-game) can be accessed by freezing RAM address $0127 at 03. Although he is mostly playable, he has no attack animations or special attack, is almost completely invulnerable to damage, and can cause the game to crash under certain circumstances. When fighting against enemy monsters, his sprite will be placed much higher on the screen than normal, which can make landing hits either very difficult or impossible (depending on the enemy).

Angilas' character sprites can only be seen in the Japanese version, as they were removed to make room for title screen graphics in the international versions. However, Angilas' board piece sprites are present in all versions of the game, and get loaded into memory whenever the board is on-screen.




Rodan can be accessed by freezing RAM address $0127 at 02. Unfortunately, his programming is even less complete than Angilas': when attempting to play as him, levels will be "skipped" instantly, and fights against enemy monsters will crash the game.

Rodan's sprites and palettes do exist in the Japanese and international versions, though only the latter is properly loaded by the game when entering levels and enemy battles.

Sound Test


Enter the password S0UND (with a zero) for the game's hidden sound test.

To do:
Verify and rip all unused themes and possible sound effects - There's plenty.

Unused Music

This song can be heard by freezing RAM address $CC at 16 and causing a music track change (entering a level, for example).

This song can be heard by entering X Y S on the password screen where it will play in the debug room.

Regional Differences

Copyright/Credit Screens

The Japanese version starts with a couple of copyright/credit screens, whereas the international versions put this information on the title screen instead. The extra screens can still be viewed in the US version by using the Game Genie code GAVYNOGK.

Title Screen

The title screen is different between the Japanese and international versions.

Japan US Europe
NesgodzillaJ-title.png Nesgodzilla-title.png Nesgodzilla-title-EU.png

The title animation was also changed. In the Japanese version, Godzilla's eyes appear in the darkness, followed by the rest of his body, after which the title pops onto the screen. In the international versions, the "Godzilla" text appears in black on a dark red background, which fades into the actual title screen.

The Japanese version also uses unique music tracks for both the title and intro screens, which were changed to the themes used for Planet X and Mars (respectively) in other releases. Both of these songs were composed by Akira Ifukube, a composer for the Godzilla films, so they may have been removed due to licensing issues. The tracks can still be heard in the international versions' sound test as tracks 00 and 01.

Password Screen

Japan International
Nesgodzilla-jpass.png Nesgodzilla-upass.png

The password screen of the Japanese version uses Compile's own lettering and makes the numbers red. Other versions use a different type and a uniform color.


All maps that have Hedorah do not make him visible from the start.


Japan International
Nesgodzillaj-jupm.png Nesgodzillau-jupm.png

Two Mecha City spaces are added next to the base.


Japan International
Nesgodzillaj-satm.png Nesgodzillau-satm.png

One Mecha City space added next to Baragon.


Japan International
Nesgodzillaj-plum.png Nesgodzillau-plum.png

Baragon and Gigan are moved to the outer paths.


Japan International
Nesgodzillaj-nepm.png Nesgodzillau-nepm.png

The map is condensed to one screen, with the monsters moved into columns (Hedorah at the top-center), and Mecha-Godzilla upon the base. In the Japanese version, a single jungle space was also at the center, occupied by Moguera.


  • On the map screen, Godzilla and Mothra were limited to moving only one and two spaces respectively in the Japanese version. This was doubled to two and four in the international versions.
  • Godzilla's attacks were sped up significantly in the international versions.
  • The international versions have a scoring system. This was not present in the Japanese version.
  • In his first battle on Earth, Gezora has five bars of power and life in the Japanese version, but only four in the international versions.


  • Title cards were added to the beginning of each world for the international versions.
  • Most of the boss monsters (excluding Varan and Gigan) had their names rendered differently between the Japanese and international versions.
Japan International
Gezorah Gezora
Mogela Moguera
Hedrah Hedorah
Varagon Baragon
Mechagodzilla Mecha-Godzilla
Kinggidrah Ghidora