Dark levels are one of the greatest threats to the Spelunker's life. Enemies lurk in the shadows, all cliffs become blind jumps, and if you've irritated a shopkeeper on one of the previous levels, this can be even more dangerous than usual. Fortunately, the caverns contain a few light sources that can help prolong the Spelunker's life; not only are light sources surrounded by their own circles of visibility, but your circle of visibility will be larger the closer you are to one.

The following carried objects emit light:

• Pistol (when fired)
• Shotgun (when fired)
• Webcannon (when fired)
• Flare
• Box of Flares
• Bombs (when they explode)

The following dungeon features emit light:

• Lanterns and torches
• Spike traps
• Smash traps
• Arrow traps
• Lava
• Golden Scarabs

The following equippable items emit light:

• Hedjet