Added Speed Spin.
I managed to fix the problem in MAME that causes junk on the character screen. I'm not entirely sure how hacktacular my fix is, but I'll try and submit it to MAMEdev anyway. lol
in src/mame/video/speedspn.c
Find this:
if (attr&0x10) xpos +=0x100;
add this after:
if (attr == 0 && xpos != 0) break;