Don't remove client's teams from teams list on "ROUNDFINISHED 0", just send team removal message to others. This should fix problems with ghost teams in frontend. Not tested at all, successfully built on first attempt, which is considered as a bad sign :D Server still thinks game proceeds, so restart isn't possible.

Ukemi
Godai
Ninpo
Shinobi
Tatsujin
Arashi
Bushi
Itami
Kenshi