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Linus Spacehead's Cosmic Crusade

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Title Screen

Linus Spacehead's Cosmic Crusade

Also known as: Cosmic Spacehead (EU)
Developer: Codemasters
Publisher: Camerica
Platform: Unlicensed NES
Released in US: 1992
Released in EU: 1993


DebugIcon.png This game has debugging material.
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?

ROM/RAM Test

All NES games developed by Codemasters are based on the same stub library. As a result, all of these games, including those on multicarts, include a "smiley test" that verifies the integrity of the PRG ROM and CHR RAM chips.

To activate the PRG ROM test, hold Up + Down + Left + Right + A + Select + Start and press Reset. To activate the CHR RAM test, hold Up + Down + Left + Right + B + Select + Start and press Reset. (These tests can also be run simultaneously by holding both A and B, and the results will be ORed together in RAM.) If the PRG ROM checksum matches with the internal value or the CHR RAM chip has no bad cells, the program will display a happy green face; otherwise, it will display a sad red face. The code also attempts to write the test results to an unknown device at $4400, possibly an automated cartridge tester.

Note that the tests cannot be performed with an unmodified controller, as the design of the directional pad prevents more than two directions from being pressed at once.

Passed Failed
Test passed :) Test failed :(

In-game Reset

Press and hold A + B then press Select + Start.

Regional Differences

The game's title in European regions was changed "Cosmic Spacehead". Several graphical changes were made to the game to reflect the change of title.

USA Europe
Linus Spacehead's Cosmic Crusade-title.png Cosmic Spacehead 2017-04-16 14.06.20.png

The intro graphic was changed to match the European box art, which features a very different rendition of the game's protagonist. A Codemasters logo was also added to this screen.

USA Europe
Linus Spacehead's Cosmic Crusade 2017-04-16 14.11.13.png Cosmic Spacehead 2017-04-16 14.11.06.png