Simplify the following text for a Grade 4 native English-speaking person.
Original: Super Smash Bros. , known in Japan as DairantÅ Smash Brothers , is a series of fighting games published by Nintendo , featuring characters from established video games .
Simplified: Super Smash Bros. , also known as SSB or Smash Bros. , is a series of fighting video games made by Nintendo . There are three games in the series .