Triple characters

ok i’ve heard and seen double characters plenty, but triple??
check out the last two pics on this page
http://www.csie.ntu.edu.tw/~b88004/DVE/cvs2_3on3_1.htm

Dreamcast only or mayby console only.
There is an option where you can pick the same characters.

thing is, this was at a tournament… check out the machines in the earlier pics
maybe they had consoles in the cabinet?
oh yeah sheesh they’re playing with dreamcast sticks
blind me