Another hacked version of Bugs Bunny Crazy Castle by Frank Maggiore. The "Ultimate Bugs Bunny Crazy Castle" moniker suggests a significant overhaul or enhancement compared to the original game.  Version 1.2 likely contains revised levels, gameplay tweaks, or additional features, creating a unique experience distinct from the original release. Its history stems from the creativity of the ROM hacking community.

Bugs Bunny Crazy Castle, The (USA) [Hack by Frank Maggiore v1.2] (~Ultimate Bugs Bunny Crazy Castle, The)

Bugs Bunny Blowout, The (Europe)