Crystal Caverns

Crystal Caverns is the ninth "wild" area of the game, and serves primarily as a passage between Whisker Woods and Inferno Cave/Polar Fields. It is a dark, maze-like cave that can be extremely dangerous to traverse due to its narrow rooms and corridors and the amount of enemies encountered here. Large rocks block the pathways to Inferno Cave and Polar Fields, and cannot be pushed until the player is Level 2 and Level 3 respectively. Deeper within the cave, there is a river that can be frozen with the use of the Warm Stone, as well as a wall of dirt that can be excavated using Call with the help of a hedgehog.

Get the Flame Retardant Suit
Percy explains that in order to safely enter Inferno Cave, the player must be wearing a Flame Retardant Suit, or else the heat will finish them off in seconds. Percy is able to create one for the player using several materials that can be found in Crystal Caverns - a Komodo Dragon Skin and some Brass Wire - and asks that the player go collect them for him. The Komodo Dragon Skin can be collected by stunning the komodo dragon stationed near the entrance to Inferno Cave, while the Brass Wire must be sniffed out and dug up in another room.