Sega’s promotional event Make War Not Love offers 2 free Mega CD games (Revenge of Shinobi and Streets of Rage 2) when you sign up.
The Revenge of Shinobi, released in Japan as The Super Shinobi (ザ・スーパー忍 Za Sūpā Shinobi), is a video game developed and published by Sega in 1989. It was the first Shinobi game developed for the Sega Genesis, and was later released on the coin-operated version of that console, the Mega-Tech.
Here´s gameplay video by World of Longplays
Streets of Rage 2, released in Japan as Bare Knuckle II: The Requiem of the Deadly Battle (ベア・ナックルII 死闘への鎮魂歌 Bea Nakkuru Tsū: Shitō he no Chinkonka), is a side-scrolling beat ’em up video game published by Sega in 1992 for the Mega Drive/Genesis and developed by an ad hoc team of several companies: Sega, Ancient, Shout! Designworks, MNM Software and H.I.C.
Here´s gameplay video by gocalibergaming
You’ll find all instructions on the following page. Please read carefully!
1. Sign up with your steam account on their website.
2. Confirm your email address.
3. Games should be in your Steam account over the next 24hrs.
4. The game installs as Sega Mega Drive And Genesis classics and each of the 2 games is a DLC.