Keystone

Keystones are glowing purple orb and are used for opening the Cockblock Gates.

Currently there are ten in the game guarded by: Each keystone can unlock any gate, allowing you to go in any direction you wish.
 * Mega Slime
 * Kybele
 * Dragon Matriarch
 * Monarch
 * Queen Bee
 * Petra
 * Autumn
 * Apopha Fesssi
 * Widow
 * Chieftain Xena