Some speculate that "Utrashman" was a developer joke—an internal test dummy used by Game Freak to test collision detection, which was expanded upon by a ROM hacker to create this "cursed" version.
The gameplay is rumored to be a "kaizo" or "evil" hack. The code is unstable, causing frequent crashes, but when it runs, the rules are twisted. Wild Pokémon are replaced by "Trash" sprites—corrupted data blocks that use moves like "Delete" and "Format." 1986 pokemon emerald utrashman rom exclusive