Well, the Sega Master System does and get job converting the arcade port to the 8-bit version. There a couple of this that are not the same. One, you have a life bar and it can increase if you rescue the right kid. The arcade had no life bar, if you hit someone it just knocked you back. If you were hit by a weapon, you are dead. They don't mess around. If was a quick way to kiss your quarters good bye. Is it a good or bad thing? Well, if you are a hardcore arcade nut, it is a bad thing. If you want to play the actually and have a chance to beat it, its a good thing. Also, weapons are added to the game. Think about this, an eight bit game, has more options for weapons then the arcade counterpart. Wow, that boggles my mind just thinking about it. The added weapons from a distance is the knives and bombs. The close in weapons are the Nunchakus. This could make a hardcore arcade gamer upset, but I feel that the life bar and the added weapons help with the replay value of the game. One thing that only a hand full of Shinobi fans know is the ending on the Sega Master System is different then the arcade. Here is the ending of the Sega Master System, "Game Over", the same title when you die. Wow, that stinks. I just beat and super hard game and "Game Over" is the ending. The Arcade shows Joe's face with a paragraph to read. Not to special, but at least it is an ending. I never beat the NES version, I could stand playing it after playing the SMS version. Another thing that is different is the bonus rounds give you magic on the SMS version and the arcade you get free lives. Also, if you beat a stage with out using your distance weapons, you do get 20,000 bonus points at the end of each stage. On the sega master system you don't. It is rumored if you go through the whole arcade game without using a distance weapon you will receive 700,000 bonus points. OK, who could actual do that? I have a hard time beating the arcade version because you can't continue in the last stage. Also, how could you beat the bosses without using a distance weapon. It probably the joke as the Street Fighter II rumor of Shen Long. Go through the whole game with perfects and at the end you will fight Shen Long. Well, I'm not going to try this for the sega master system or the Arcade because I actual have a life. If it is true please email me.