> I'm able to play it OK. I'm just trying to figure out why something basically > homebrew like D2K is in MAME but Outrun Enhanced isn't. I'm just trying to figure out > the logic. Outrun Enhanced is completely in the spirit of MAME.
d2k was written to be commercially sold, outrun enhanced wasn't. Which is the usual cut off for MAME.
It's to raise the bar to stop people writing trivial hacks just to get them included in MAME rather than making something that people would find interesting enough to buy.
It has some casualties, but it means we don't spend all our time arguing over what should be added or not.
Outrun enhanced is not very interesting for preservation as the majority of changes are fixing Sega's bugs.