Sega's Genesis Mini, launching September 19 for $79.99, is 55% smaller than the original Genesis, comes with two USB controllers, and has 42 built-in games (Andrew Webster/The Verge)

Andrew Webster / The Verge:
Sega's Genesis Mini, launching September 19 for $79.99, is 55% smaller than the original Genesis, comes with two USB controllers, and has 42 built-in games  —  It's been three years since the breakout success of Nintendo's tiny NES Classic, but the miniature console wars are finally heating up.