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Gradius: The Interstellar Assault

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Title Screen

Gradius: The Interstellar Assault

Also known as: Nemesis II (JP), Nemesis II: The Return of the Hero (EU)
Developer: Konami
Publisher: Konami
Platform: Game Boy
Released in JP: August 9, 1991
Released in US: January 1992
Released in EU: 1992


CodeIcon.png This game has unused code.
TextIcon.png This game has unused text.
RegionIcon.png This game has regional differences.


So very stubbly.
This page is rather stubbly and could use some expansion.
Are you a bad enough dude to rescue this article?
Hmmm...
To do:
Grab screenshots comparing differences between the Japanese and USA/European release (e.g. the score display), as well as the Konami GB Collection rereleases.

Unused Demo Screen

Gradius The Interstellar Assault Demo Screen.png

Enter one of the below Game Genie codes (depending on region) to access an unused demo screen (likely used in a prototype build of the game) after the Konami logo:

US/Europe Japan
CDE‑7DF‑E65
00E‑84F‑E69
CDE‑45F‑E65
00E‑4CF‑E69

Note that the title screen may need to be accessed first in order to load the game's font.


(Source: cah4e3)

Version Differences

The Konami GB Collection version has Super Game Boy support in Japan, and Game Boy Color support in Europe. Both releases change Nemesis to Gradius in the game's name. The European subtitle is retained for the European rerelease.

Regional Differences

Title Screen

Japan, Game Boy USA, Game Boy Europe, Game Boy Konami GB Collection Vol. 3 (JP, Super Game Boy) Konami GB Collection Vol. 4 (EU, Game Boy Color)
NemesisII Title JP.png Gradius The Interstellar Assault Title.png NemesisII Title EU.png Gradius II SuperGameBoy Title.png Gradius II GameBoyColor Title.png

The USA release is the only initial release to feature the Gradius branding, while the European title keeps the Japanese title but adds the subtitle "The Return of the Hero".

Score Display

Japan US/Europe GBC
Nemesis II GB JP Gameplay.png Nemesis II GB US-EU Score.png Gradius II GBC Gameplay.png

Much like the first game, the original Japanese version only displays the player score on the Player Out/Ship Lost or Game Over screens, while the international releases condense and move the options bar to the left to make room for the score during gameplay.

However, the Konami GB Collection rereleases (Vol. 3 for Japan and Vol. 4 for Europe) are based on the Japanese versions of the included games, so unfortunately this change is reverted there as with the previous game.

Player Out/Ship Lost

Japan US/Europe GBC
Nemesis II GB JP PLAYER OUT.png Nemesis II GB US-EU SHIP LOST.png Gradius II GBC PLAYER OUT.png

The screen that shows after a player loses a ship has been changed from "PLAYER OUT" to "SHIP LOST" in the international versions, just like with the previous game. HISCORE was also changed to TOP SCORE, and the zeroes had their slashes removed. All of these changes were also reverted for the Konami GB Collection rerelease.