
SNES - Great colour use across the board and in my opinion the best of the three.

PC-Engine - Very good and quite comparable to the SNES version, one notable exception is Zangief stage, which due to the lack of parallax (more on that later) is now entirely missing the foreground fence. Guile's stage does however have more of the background elements retained from the arcade, as the couple sitting on the box in the background are missing from both other ports. Some levels, such as the aforementioned Ryu stage and Zangief's stage have more detail in the backgrounds than either of the other two versions (Zangief's stage has the properly drawn chain from the arcade original, as well as signs on its fence which are missing in the other versions), whilst others have some noticeably inferior texture work, such as those for the ground in the Sagat and Guile stages which are not up to par by comparison (see 1st picture for example, the floor is noticeably more grainy in the Mega Drive port). Mega Drive - As a whole it's pretty good, though not as consistant as the SNES version. I'm giving the overall win to the SNES due to the fact that it seems to win out in detail in the highest number of stages. I think that the SNES version probably has the most consistant graphics detail as a whole out of the three, but something which needs to be pointed out is that each version of the game actually has their own specific examples of stages which edge each other out (Ryu's level for instance generally has a lower level of detail on the SNES compared to the MD, and is missing the moon in the background). SNES - This has a very high level of detail.

Street Fighter II Comparison: SNES Vs Genesis Vs TG-16
