That’s not what determines whether a country is a 2 party system or a multi party system. There are plenty of countries that have small parties which have never formed government themselves but nevertheless have held real power in coalitions or minority parliaments.
Canada’s public health care system was created by Tommy Douglas, an NDP MP and party leader. If Canada were strictly a two party system like the US then that would never have happened.
Yeah this game is absolutely one of a kind. Nothing else like it. Really funny too, with great voice acting and a wacky story!