Specific to Lunar Knights, Professor Sheridan is a quirky, rather strange scientist who studies just about anything. He specializes, though, in the effects of the ParaSOL. Each time a Terrennial is freed from the respective Casket Armor it is imbued in, a new part of the paraSOL becomes accessible, which respectively grants access to a new climate. Sheridan uses the ParaSOL to change climates, which can drastically affect game play. Sheridan also specializes in weapon reformation. Given the proper materials, Sheridan can upgrade Aaron and Lucian's weapons, providing them with enhanced stats and certain perks (e.g. faster fire rate, longer range, etc.).