Obviously without any sort of new content beyond asset replacements, Portal Vocaloid Edition fills the void that only strange and robotic J-Pop can provide.

Portal Memories is a victim wasted potential: Poor mapping and focus kill the project midway through it's run, despite its first episode being utterly fantastic.

While a great mod and one of the most cherished in the Portal community, Prelude's difficulty and rough edges make it a game you need to be prepared for.