Unlock these cheats by collecting the hidden art pages and scanning ghosts/objects/entities. You can turn them on and off at the Options screen (they'll be turned on by default when you unlock each one).
Unlockable How to Unlock Equipment Strength Upgrade Collect 100% of all art pages. Faster Health Regeneration Collect 50% of all art pages. Gozerian Rookie Outfit (Immune To Sliming) Beat the last level on Gozerian (Hard) difficulty (can replay the last level on the increased difficulty to achieve this goal). Increased Scanning Speed Collect 50% of all scans. Invulnerability Achieve 100% completion (can replay levels to achieve this goal). No Equipment Overheat Collect 100% of all scans.
Contributed By: prudoff.
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