MAP21: Mt. Erebus (Console Doom)

MAP21: Mt. Erebus is the twenty-first level of console versions of Doom, based on the original E3M6: Mt. Erebus with modifications made to adapt to the consoles' limitations. It was converted by American McGee and originally designed by Sandy Petersen. The map first appeared in Atari Jaguar version, and is additionally used in the 3DO, Game Boy Advance, Sony PlayStation, and Sega Saturn versions.

Secrets

 * 1) (sector 67)
 * 2) (sector 104)

Comparison of versions
Numerous changes exist in the level as compared to its PC version:

Geometry simplification

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New design
Some rooms in the level were redesigned:
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Other

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PlayStation
Some additional changes were made in the PlayStation port:
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Music
The map uses the following music tracks: