Basically, better Super FX and DSP (1-4) chip emulation. DSP-4 is a no-go at the moment, thanks to some weird protection/encryption in the chip...So no Top Gear 3000 yet. Other bugs in other emulated special chips still exist...SA-1 (Star Ocean, Kirby's Dreamland 3) Just because you can't see ythose doesn't mean they aren't there. Oh yes...and the infamous "Too speedy battles in Star Ocean"...but this is ZSNES' problem.