Rush Light is a robotic dog created by Dr. Light in the Mega Man (Rockman) universe. While Rush is not a central character in the Rockman X (Mega Man X) series, he is well-known as Mega Man's loyal canine companion in the original series. Rush assists the protagonist with various support functions, transforming into different vehicles and helping in difficult situations. Although his direct appearances in the X series are limited, Rush remains an iconic part of the broader Rockman universe and is recognized for his supportive and resourceful nature.