The Sega Genesis version is one of the more popular and well known ports. It looks almost like the arcade, but they took out and censored some things. The intro where you see Alex die was removed and replaced by the hero explaining the story, the Sega Beer Barn in Turtle Village I was taken out, they removed the ending with the arcade and replaced it with playing baseball with the text, and they removed all instances of blood. This is very interesting considering that the cartridge is a world version. This version also had a hidden stage when you defeated Death Adder and contained a mode called Duel were you fought various enemies from the game.
The hidden stage is really poorly designed containing pits that are really easy to fall into. Another difference is when you save the king and queen they give you some BS reason why you have to go through the door and save the kingdom. This version is 2 player and was also released on the Genesis in a package called "Sega 6 Pack". which included “Columns”, “Sonic the Hedgehog”, “Streets of Rage”, “Revenge of Shinobi”, and "Super Hang-on", obviously a great selection. The box art was so bad it was featured in anarticle on 1up.com about some of the worst art ever to grace a videogame box