Ghostbusters: The Video Game Cheats

Successfully complete the indicated task to unlock the corresponding entry at the "Options" menu:

Equipment Strength Upgrade: Collect all 103 illustrations for Tobin's Spirit Guide.
Faster Health Recovery: Collect 50% of the illustrations for Tobin's Spirit Guide.
Gozerian Rookie Outfit: Successfully complete the game on the Gozerian difficulty. This outfit will allow you to be immune to sliming.
Increased Scanning Speed: Scan 50% of the ghosts and scannable objects for Tobin's Spirit Guide.
Invulnerability: Successfully complete the game with all 103 illustrations collected and scan all 103 ghosts and scannable objects.
No Equipment Overheat: Scan all 103 ghosts and scannable objects for Tobin's Spirit Guide.