Doctor Robotnikâs Plan B is an online SEGA game that you can play at Emulator Online. This free Sega game is the United States of America region version for the USA. It has been played 3,276 times so far and was posted on May 6, 2017. Doctor Robotnikâs Plan B is a single title from the many adventure games, arcade games and platform games that we offer for this console. If you enjoyed playing this, then you can find similar games in the sega games category. Doctor Robotnikâs Plan B game is from the various retro games on the site, and there are more games like this, including Sonic X Freedom Planet, Super Smash Bros. and Plants VS Zombies.