with the robot, the aliens kidnap Dr. Shiragami and take him to Lake Ashino. Godzilla goes there to rescue the professor, and is confronted by Biollante, his plant-like clone. After defeating Biollante, the Super X II rescues Shiragami, it is revealed that the doctor had recovered DNA samples of Godzilla and King Ghidorah and had been experimenting on them to create a serum that enhances the physical attributes of any being. However, the aliens invaded his laboratory and stole the samples, using them to create Biollante. Dr. Shiragami injects some of the serum into Godzilla, making him stronger. The aliens unleash Battra in Yokohama, and it lays an egg that is threatening to hatch. Godzilla travels to Yokohama, kills Battra, and destroys the egg before it can hatch. King Ghidorah soon returns as Mecha-King Ghidorah, having been resurrected by the aliens, and begins to attack Yokohama. The aliens reveal that they have hidden several capsules around the city that are holding Shiragami's serum. If Godzilla can find them all before Mecha-King Ghidorah destroys fifty percent of the city, he will mutate into a more powerful form dubbed "Super Godzilla." He succeeds, and confronts Mecha-King Ghidorah. The cyborg monster is easily outmatched by Godzilla's newfound power and is destroyed. However, the battle is far from over. The aliens travel to China, where they awaken an ancient creature called Bagan and inject him with sample of the serum, making him just as powerful as Godzilla. The two titans battle in the ruins of Yokohama, and Bagan proves to be more challenging than all the other monsters he faced. Eventually, Godzilla bests Bagan, and the aliens retreat, but not before promising revenge. The serum eventually wears off, and Godzilla returns to his original form. The Super X II disables the transmitter, releasing Godzilla from their control, and the mutant dinosaur returns to the ocean with humanity indebted to him for his aide. Reception GamePro opined that the visuals and sounds "capture the essence of Godzilla movies" but that the gameplay moves too slow, with extensive time spent on a dull map screen culminating in battles which consist mostly of non-interactive cinemas. They concluded the game to be only for hardcore Godzilla fans. Electronic Gaming Monthly similarly criticized that the map roaming is too slow and boring and the battles are too lacking in interactivity, and additionally complained that frustrating "cheap hits" were too