Godzilla breaks free and chases SpaceGodzilla to Fukuoka. With M.O.G.U.E.R.A.’s help, they destroy the crystal tower, cutting off SpaceGodzilla’s energy supply. A final battle ensues, and Godzilla destroys SpaceGodzilla by ripping out his second brain (the “shoulder crystal”). M.O.G.U.E.R.A. self-destructs to finish the job. Little Godzilla (Godzilla’s son) is saved, and Godzilla returns to the sea.
Godzilla vs. SpaceGodzilla (1994) is often called the "black sheep" of the Heisei era. It’s a movie that swaps the darker, more grounded tone of its predecessors for a colorful, almost "Saturday morning cartoon" energy that polarizes fans to this day. The Villain: SpaceGodzilla
It’s "peak 90s sci-fi": Godzilla's cells somehow ended up in space (via either Biollante or Mothra), fell through a black hole, and merged with crystalline organisms to create a cosmic clone.
He can sprout massive crystals from the ground, which serve as an infinite energy source and a defensive shield.
The film tries to juggle three distinct storylines: a psychic institute raising a baby Godzilla (Little Godzilla), a military plot involving "M Project" (a telepathy-based control device), and the sudden arrival of an extraterrestrial clone of Godzilla born from G-Cells. To say the script is messy is an understatement. The scientific explanations for SpaceGodzilla’s origin—involving Mothra carrying cells into space or Biollante’s spores getting sucked into a black hole—are delivered with breathless exposition that demands you not ask too many questions.