Too many to list, not just games I think are great, but games I really would chose over all platforms. The big one obviously is TM/FEOE Fuun Kabuki Den, which never gets old.
Bloody Wolf is actually arcade-superior, with double the framerate, infinitely better soundtrack, double(?) the length and bonus modes to keep it interesting for longer. The arcade version shouldn't have been released as-is. The PCE version isn't really a port, since the arcade runs on PCE hardware, except the sound, which wasn't ported. 
very interesting this i did not know
