Shumplations, an excellent site that posts old interviews with game developers, published a 1999 interview with Mr. Yuji Naka – who is best known for being the original head of the Sonic Team – about Chu Chu Rocket. Chu Chu Rocket was a fun and creative competitive puzzle game for Sega Dreamcast wherein players tried to guide mice into spaceships (and away from cats). The comments in the article about online play are very interesting.