Gaming preservation group Hidden Palace has discovered a “nearly complete” prototype of a cancelled game based on Animaniacs, the beloved 90s animated show created by Tom Ruegger and produced by Steven Spielberg.
Animaniacs: Hollywood Hypnotics was being developed by UK studio Full Fat Productions, which was also a frequent collaborator with Maxis on series like The Sims and Spore, and now mainly develops mobile games. Intended for the Game Boy Advance, Hollywood Hypnotics was in development between 2000 and 2003.
Hidden Palace revealed the prototype’s release on X (via Kotaku). The build was acquired by frequent Hidden Palace collaborator MrPinball64, who has supplied the group with more than 100 game prototypes in the last few years.
Hello again! Presenting: A nearly complete build of Animaniacs: Hollywood Hypnotics for the Game Boy Advance, a game that was thought to have been lost until now! pic.twitter.com/5x4gHghzWUJune 29, 2025
The group provided further details about the game and its development on the website. Despite being unfinished, the game is playable end-to-end. Structurally, Hidden Path describes it as similar to the Dizzy series of adventure games, with players solving puzzles and interacting with NPCs across six studio lots, culminating in a showdown with Pinky and the Brain.
While apparently feature-complete, Hollywood Hypnotics does lack polish, with unrefined puzzle design and hazy signposting. Moreover, the player character graphics are directly based off another Animaniacs game designed for the Sega Genesis in 1994, though whether these are placeholder sprites or a way to cut costs on the part of Full Fat is unclear.
Hollywood Hypnotics was ultimately cancelled after a rough development that involved several iterations. It was originally handed to Full Fat by publisher Conspiracy Entertainment, but Full Fat seemingly abandoned the project in favour of gigs with other publishers. The spinoff was then revived by German publisher Swing Entertainment, with Full Fat starting the game over. But Swing closed its doors in 2003, with Hollywood Hypnotics being canned as a consequence.
You can download the Hollywood Hypnotics’ prototype via Hidden Palace’s website. The build is playable with any GBA emulator.