"Ryu" in Many Games

The name "Ryu" has been used for many games as the main character.
Here are some examples :

Ryu Hayabusa in Ninja Gaiden series

According to the game canon, Ryu (lit. "dragon") Hayabusa ("falcon") is a ninja and the leader of the Dragon Ninja Clan that has spiritual, physical, and magical ties to ancient dragons. As a son of Joe Hayabusa (Ken Hayabusa in the NES Ninja Gaiden), Ryu is the current heir to the Dragon lineage and is also the holder of the legendary Dragon Sword. Although his father should carry the sword, he passed the sword to Ryu early, due to his bravery and valor. His mother was neither mentioned nor seen in any NG games, although was mentioned in the Worlds of Power novel (where she gives Ryu the letter from his father).



Ryu is 21 years old in Ninja Gaiden and 23 in the Dead or Alive series. Although he appears as a normal man, he is not completely human; this was discovered during the Dark Dragon Blade incident. Because his ancestors draw their blood from the same deities as the Fiends of Vigoor, he is susceptible to the Blood Curse and therefore is able to be turned into a fiend.

He is the ninja Hayate's best friend and an ally of Kasumi and Ayane. He and his ninja brethren have been direct players in the defeat of every major threat in the DOA tournaments, himself defeating the rogue Tengu in single combat during the second tournament. Ryu has befriended several people from the DOA tournaments, notably Jann Lee, with whom he shares a mutual respect, though it's never specifically mentioned in any of the games.

In Ninja Gaiden, Ryu is known by some as "The Dragon Ninja" or "The Super Ninja". The CIA knows about his clan, abilities, and history. Ryu has been betrayed by some of his alleged allies such as A. Foster (Ninja Gaiden NES), and his uncle Murai (Ninja Gaiden Black). (wikipedia)


Ryu In Street Fighter series

Ryu (リュウ Ryū?, written as 隆 in the original Street Fighter) is a video game character created by Capcom, the main protagonist of the Street Fighter series.
Premiering in the first Street Fighter, Ryu appears as the lead character from the game along with his best friend Ken participating in the Street Fighter tournament. Further games from the series show Ryu to be highly focused on his training, aiming to become the strongest he can. However, his powers also attract several criminals who want to use him for their plans.
Ryu has been the lead character of the Street Fighter series since the first game and has appeared in crossovers involving the franchise. He is also featured in manga from the series, anime adaptations and the 1994 live-action film. (wikipedia)

Ryu in Breath Of Fire series

Ryu, is the last surviving member of a messianic dragon clan who must save the humans from their false god. Ryu is always depicted as a young man with blue hair and eyes wielding a sword. Another recurring character is Nina, a winged woman of similar age to Ryu with blond hair that is typically a princess and Ryu's love interest, the exception to this being in Breath of Fire V in which Nina is a mute girl younger than Ryu who he arguably has a sibling relationship with. (wikipedia)