Wow, I missed a lot while I was gone.
I'm surprised that no one mentioned Super Darius/Darius Plus/Darius Alpha in regard to the PC Engine doing real roundy non-block 2 layer/plane stuff. Sure the SuperGrafx reduces flicker by moving one layer to its hardware layerer, but the PCE still pulls it off just the same.
Separate from the separate scrolling bg's, I just think that Daimakaimura isn't very pretty nor an amazing arcade port by PCE standards.
It may at least port a lot of the arcade's art/grafx, instead of having everything completely redrawn like the early Capcom MD/Gen ports by Sega, but so much of it looks un-touched up and there's some poor use of color. I'd much rather have a static bg port of GnG thats the same quality as Forgotten Worlds.
HuCard-wise, yes the SuperGrafx has the potential to do a better job than a PCE HuCard. But I'd rather play a PCE CD game.
And yes, LaZer Dorks is the king of forum Nerdom.