Thunder Force 3 is probably my favorite to play, even though it is extremely easy for me. I like Thunder Force 4 a lot, but it does get a bit fatiguing. So does Thunder Force 5, which was less fun than part 4. It just tried to be too "hardcore". I really, really enjoy Thunder Force 2. It had the perfect difficulty level. And yes, I enjoy the overhead stages.
For a list (and descriptions) of all the shooters for the Genesis/Mega Drive (no run and guns), CLICK HERE.
I don't know of any similar lists for the PCE or SNES.
Thunder Force 3 happens to be one of my favorites to... and thruxton...
Propably also a lot to do with the fond memories i had on them.
I'm glad i made lots of good choices when i bought games as a kid as otherwise i might say different.
Anyways, i only just discovered (a week ago) thunder force 3 was released on the snes named "thunder spirits".
Not sure it was called that way in all regions though.
Played it on my snes emulator.
It's not exactly a straight port from the genesis version, it is more difficult from my experience.
Backgrounds are a bit different and maybe more detailed but it seems as a result end bosses seem to stand out a bit less, but that's maybe something to do with the fact that the first boss is yellow instead of red.
The music is a bit smoother but doesn't come true to be as emotional as the genesis version to.
Haven't put that much playtime in the snes version but it seems i still prefer the genesis version.