Xenosaga Freaks is a PlayStation 2 title released exclusively in Japan. The game comprises two segments: XenoComi, a voice-acted illustrated text adventure featuring six scenarios focused on characters from Xenosaga Episode 1, and Kotoba no Puzzle: Xenopittan, a word puzzle game based on Kotoba no Puzzle: Mojipittan. XenoComi's narrative is lighthearted, centering on a chaotic incident involving a cat-eared KOS-MOS.
Xenosaga Freaks was only released in Japan and it contains 2 games, an Encyclopedia of terms used in Xenosaga Episode 1, and a demo for Xenosaga Episode 2.
The main game is XenoComi, an illustrated and voice acted text adventure. It has 6 scenarios to go through involving the main characters from Episode 1 and a 7th is unlocked when the other 6 have been played. It takes place at some point during Episode 1 and is much more light hearted. It focuses on the events caused by a rampaging cat-eared KOS-MOS and the event that led to the situation.
The other game is Kotoba no Puzzle: Xenopittan, a Xenosaga themed word puzzle game. Based off the game Kotoba no Puzzle: Mojipittan.