Complete Valley of Doom on Medium or Hard
Complete Science Lab on Medium or Hard
Complete Inner Sanctum on Medium or Hard
Find all Journals in Valley of Doom
Destroy all Watcher Scientists in Science Lab
Destroy all Watcher Incubators in Inner Sanctum
Find 100 Tech Points in Valley of Doom
Find 100 Tech Points in Science Lab
Find 100 Tech Points in Inner Sanctum
Complete Dark Void Zero on Easy
Complete Dark Void Zero on Medium
Complete Dark Void Zero on Hard
Complete Valley of Doom with 0 Lives Lost on Hard
Complete Science Lab with 0 Lives Lost on Hard
Complete Inner Sanctum with 0 Lives Lost on Hard
Complete Dark Void Zero with 0 Lives Lost on Medium or Hard
Kill one of every enemy type
Kill 100 enemies in a row when armed with the Liberator
Kill 100 enemies in a row when armed with the Disintegrator
Kill 500 Parasites
Collect all 1UP pickups
Complete Dark Void Zero in 34 minutes or less
Finish Valley of Doom with at least 80,000 points
Finish Science Lab with at least 220,000 points
Finish Inner Sanctum with at least 400,000 points
Lose 10 lives in Valley of Doom on Easy
Experience 10 lava-related deaths
Complete a lock-in fight in under 5 seconds
Freefall for 4.5 seconds
Take no damage from laser traps while hovering in Science Lab
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