Simplify the following text for a Grade 4 native English-speaking person.
Original: Street Fighter II is a sub-series in Capcom 's Street Fighter franchise of competitive fighting games , originally released as coin-operated arcade games . The Street Fighter II series started with the original Street Fighter II game itself , released in as a sequel to Capcoms fighting game Street Fighter .
Simplified: Street Fighter II is a video game by Capcom made in 1990 .