In the "To Love-Ru" series, how many Trans-weapons were created?

In the To Love-Ru series, a total of three Trans-Weapons were created. These Trans-Weapons are extremely powerful and sought-after devices capable of transforming themselves into various forms of weaponry. They were created by the genius scientist, Dr. Mikado, who developed them for Yuuki Rito, the main protagonist, to assist him in protecting himself and his friends from various threats and enemies. Each Trans-Weapon possesses unique abilities and forms, making them crucial assets in the battles and adventures throughout the series.