The Zythanium Crystal is the kind of material mostly found on planet Zavier. Zynthanium Cystals contain a special element called Zavier (hince planet Zavier) which when it touches another species it alters the DNA of that species and gives it powers and mutate the skin. One thousand years ago many of these were scattered over the earth and mutated many human beings now any 3 are left.
The Neroid Crystal is the cause of Neroid mode. When a Neroid Crystal is used on a HALFY the body isn't mutated or changed at all but instead it gives extreme power to the HALFY and sometimes changes the execution, power, and effect of an attack. Neroid Crystals are found on the planet Neroid in Oxygen Crater and every year they burst into three peices and sink into the ground to grow more crystals. Oxygen Crater is a huge crater in the planet caused by a massive asteroid many years ago. It now has a hill dead center in the crater. Around the hill are were the Neroid Crystals grow. The crater used to be a wasteland until a pod was put on top of the hill. After a year flowers, plants, and trees grew almost out of nowhere. It is said in one of the old legends of that planet that the Neroid Crystals power the pod which makes it grow plants so the people of planet Neroid put a dragon near the hill to gaurd the Crystals. The plants are necessary for people of Neroid to live because they to live on oxygen.
The saigen crystal is a revival crystal and has only been used twice. Once to revive Shred and the other to revive Chem-Cho. These crystal are extremely hard to make and may take centuries to make and when its made you must have enough power to make it work. With Shred, Panthear and Syth sacrificed their lives to get the power and with Chem-Cho Parallel Paradox had enough power to revive him because he is the #1 HALFY.
The Medallion belt is an item around the HALFYZ waist that holds all of the medallions.
The Wrist Waytch is a key for success for HALFYZ. It keeps gettig up-graded during the story. In the end of beig up-graded, it holds 2 clear campartments. One holds a Neroid Crystal and depending what type of Nereoid Crystal it is, the Watch makes it power that type to the HALFY. The other compartment is divivded by 4 parts all holding a chip of a Zynthanium Crystal so the HALFY can go into Zythanium mode. The Wrist Watch is also key because it ca also communicate with other HALFYZ like a walkie-talkie which is critical when they attack Planet Zavier.