Sapphire is clearly a technical marvel that highlights just how much graphical splendor the PCE is capable of when probably fed with data. I think of the PC Engine with Arcade card similarly to how I feel about the Neo Geo: throw enough RAM/ROM at the problem and it can handle almost anything. That said, I think Sapphire really doesn't have as impressive an artistic style as many other PCE shooters, and despite being fantastically animated, many of the enemies and bosses are actually rather ugly. The game is also mechanically rather bland. It's competently designed and programmed, but the only reason it stands out is the animation. Without those crazy amounts of animation the game would simply be pretty good and then promptly get forgotten in the sheer mass of great shooters on the platform.