Bores, you should know that the Genesis was actually released to compete with the NES, since the Master System was failing in sales.

When the Genesis was released in North America, Sega used the aggressive marketing slogan “Genesis Does What Nintendon’t”, which is referring to the little 8-bit grey toaster, not the rival company in general.

Not to mention, the Genesis/Mega Drive came out before the Super Nintendo/Famicom everywhere!

Japan: Mega Drive came out in 1988, Super Famicom came out in 1990

North America: Genesis came out in 1989, Super Nintendo came out in 1991

Europe: Mega Drive came out in 1990, Super Nintendo came out in 1992