some people claim, that thunder force 4 on the Mega Drive is the non plus ultra when it comes up to 16-bit shmups and defeats everything ever seen on the PCE. i doubt that immense and also have to say that TV4 on the MD is a technical wreck, since the slowdowns sometimes comes near to those of a Gradius 3 or Super R-type on SFC, although there is much more on screen of course.
usually technosoft was well known for their technical cleverness on that system, so i assume they pushed it quite to its maximum possible. resulting from that fact, the MD was quite overchallenged with that piece of software.
so i'm wondering now, how would have Thunder Force 4 looked on the PCE as well pushed to its maximum (as they did with sapphire etc).
my opinion is, and since slowdowns and flickers were rarelly seen on the pce if professionals took over the coding, that except of some parallax issues the game would had run quite faster with less slowdowns and with a slightly prettier color palette in overall.
this shouldn't become a MD bash topic, but i stand behind my opinion that the pce was more powerful to display on-screen action (dynamics, speed, low flickers etc.) with a higher amount of color than the MD and therefore a TF4 wouldn't have been an impossible issue for the PC Engine.