Question: XLink Kai is a method developed by Team-XLink for online play of certain System Link compatible video games, it enables players on various consoles, including The PlayStation 2 (PS2), a home video game console that was developed by which company?
Sentence (from "PlayStation 2 online functionality"): Games that enable the feature provide free online play through the use of a broadband internet connection and a PlayStation 2 Network Adaptor.
Relevant evidence: No