| Achievement | Description
|
|---|
| All My Enemies | Kill one of every enemy type
|
| Bookworm | Find all Journals in Valley of Doom
|
| Daredevil | Freefall for 4.5 seconds
|
| Disintegration | Kill 100 enemies in a row when armed with the Disintegrator
|
| Doom Ace | Complete Valley of Doom with 0 Lives Lost on Hard
|
| Doom Grinder | Finish Valley of Doom with at least 80,000 points
|
| Doom Master | Complete Valley of Doom on Medium or Hard
|
| Doom Techie | Find 100 Tech Points in Valley of Doom
|
| Easy Peasy | Complete Dark Void Zero on Easy
|
| Exterminator! | Kill 500 Parasites
|
| Finders, Keepers | Collect all 1UP pickups
|
| Game Ace | Complete Dark Void Zero with 0 Lives Lost on Medium or Hard
|
| Hot Stuff | Experience 10 lava-related deaths
|
| I'm A Luddite | Destroy all Watcher Scientists in Science Lab
|
| L337 Sk1llz!! | Complete Dark Void Zero on Hard
|
| Liberation | Kill 100 enemies in a row when armed with the Liberator
|
| Lock Me Up | Complete a lock-in fight in under 5 seconds
|
| Medium Rare | Complete Dark Void Zero on Medium
|
| n00b!! | Lose 10 lives in Valley of Doom on Easy
|
| Preventative Measures | Destroy all Watcher Incubators in Inner Sanctum
|
| Sanctum Ace | Complete Inner Sanctum with 0 Lives Lost on Hard
|
| Sanctum Grinder | Finish Inner Sanctum with at least 400,000 points
|
| Sanctum Master | Complete Inner Sanctum on Medium or Hard
|
| Sanctum Techie | Find 100 Tech Points in Inner Sanctum
|
| Science Ace | Complete Science Lab with 0 Lives Lost on Hard
|
| Science Grinder | Finish Science Lab with at least 220,000 points
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| Science Master | Complete Science Lab on Medium or Hard
|
| Science Techie | Find 100 Tech Points in Science Lab
|
| Speed Demon | Complete Dark Void Zero in 34 minutes or less
|
| Unscathed | Take no damage from laser traps while hovering in Science Lab
|