This is a fan-made modification or "ROM hack" of Mother 3. The Claus Journey mod alters the game by focusing on the character Claus and making changes to the storyline and gameplay. The 'Combined PSI' version suggests alterations to the PSI abilities.  This is not an official release but a community-created modification, and details of changes vary across versions.

Mother 3 Claus Journey v1.04 Combined PSI

Mother 1+2 (J)(Trashman)