The Underground Caverns were meant to be areas in Crash Landed. Many photos of the caverns were released in the beta reel. In a few of the pictures, there are many circular yellow objects attached to the ceiling, and on one instance, a rock that opens up and is on the ceiling. Some of the caves would be flooded with lava, similar to the scrapped Lava Caves level from Crash Twinsanity. In some areas, Crash would be in danger of getting hit by a falling rock. It is likely this is where the Black Rock volcano would have led.
|Known characters||Crash Bandicoot | Cortex | Dingodile | Bandicoots | Coco Bandicoot | Unidentified character | Polar|
|Known items||Frogzooka | Lab Frogzooka Launcher | Lightgate | Orb | Boombat | Bottle Rocket-Launcher | Fertilizer Gun | Anti-Aircraft Gun | Dingodile's cannon | Lab Grow Fist | Gloves | Glow Top|
|Known Enemies||Wasp | Nite Creatures | Small Floating Robot | Thug Bot | Living Flower | Unnamed Sea Urchin-like Creatures | Stench | Scorporilla | Frog | Hog | Hyena | Squid|
|Hybrids||Bandicoot-Shark Hybrid | Alligator-Turtle Hybrid | Giraffe-Turtle Hybrid|
|Locations||Rocky Island | Black Rock Island | Swamp | Underground Caverns | Tree Island | Shipwreck Island | Cortex's Lab | Mountain Island | Flower Island | Rock Formation Islands|