As a big fan of Afterburner 1&2 I wanted to like this game but is not the same, thankfully Afterburner Climax was the sequel I always wanted.
Because this is a very strange game. It was never planned as an "After Burner" sequel, but as an adaptation of another arcade game by SEGA.
The history of this game is as follows:
This is really
a domestic port of an arcade game by SEGA, called "Strike Fighter" (1991), only released in Japan.
"Strike Fighter", is in its turn, the sequel of "G-LOC", another Sega Arcade game from 1990.
Both arcade games use the spectacular SEGA "Y Board", specialized in super scaling (of sprites).
The first G-LOC game, btw, was ported to Mega Drive/Genesis, Master System and Game Gear in early 90s
So, what relation have "G-LOC" series with "After Burner" series? G-LOC series is a spin-off of After Burner, being the main difference the use of an internal view from the cockpit. In After Burner is always external. Apart from that, they are very related series, created both by SEGA... but they feel somewhat different when playing.
When this "Strike Fighter" was ported to the domestic market, they decided to port the game to the Mega-CD, filling the CD of the game with new amazing CD music based on the After Burner series, and releasing that port just as "After Burner III" in all the markets, including Japan. The new free use of both views in this Mega-CD port (internal or external) makes the game a strange mix of both series. But being a port of Strike Fighter, I feel the internal view is the better one for the gameplay, despite the name used in the port.
Anyways. the port is not good in graphics for a Mega-CD game. A
good port for Mega-CD would have extensive use of the Mega-CD capabilities in sprite rotation and sprite-scaling, trying to simulate the "Y Board" of the original arcade game. It does not. It just uses a pre-scaled graphics all the time. So... it is a mediocre port with very good (for 1992) new CD music. Why didn't they use the Mega-CD tech aspecs to make a much better port? maybe because it would cost a lot of effort... just for an unknown arcade game in the west. So... they did a bad port, put a selling name, and made a brand new OST taking advantage of the CD.
The REAL GOOD After Burner port for Mega Drive, is "After Burner Complete" for the 32X. THAT is an almost perfect conversion from the arcade (some less frames per second, but fast and excellent), with same music and voices.
EDIT: Oh, another thing: Sega, some years later, made another game called "Sega Strike Fighter", related to the one already mentioned above, but in the year 2000 and in full 3D for the NAOMI board. It's a different arcade game.