That's the same game?  
yeah.  Daimakaimura aka Ghouls 'n Ghosts
top screen is Arcade, bottem screen is Megadrive-Genesis
the same area of both is shown.  
but, uh, since they look 
exactly the same, because there are 
no differences, you couldn't tell them apart, could you?  The Megadrive-Genesis replicates the Arcade, pixel-for-pixel, because  komputer and video games magazine said so. 

but wait, we have SEGA's assurance too
___________ ^
 
  