Master Crystal

The Master Crystal is a powerful crystal that was found by Neo Cortex at the beginning of Crash Bandicoot 2: Cortex Strikes Back. One year later, Cortex brought it into the new Cortex Vortex, but he still needed all of the remaining twenty-five "slave crystals" from the planet's surface in order to fully power the device. After the Cortex Vortex was destroyed, it is not seen or mentioned again in the game.