It stands on its own as a unique little adventure game. However, the greatest value you'll find in Radical Dreamers is as as piece of supplementary material to Chrono Cross – for Radical Dreamers is essentially a four-to-five hour expository exercise to fill in some of the blanks about Kid, one of the main characters of Chrono Cross whose backstory, motivations and psyche are left somewhat vague in Chrono Cross proper.

It's the missing puzzle piece to Chrono Cross's infinitely-labyrinthine narrative, and cements Chrono as my favorite game series. A must-play if you've any investment in Chrono Cross, especially understanding the unique and unorthodox way in which Kid is written and her characterization is fleshed out.