Both Mothra and Battra attain their imago forms and converge at Yokohama Cosmo World. Godzilla interrupts the battle and attacks Battra. The two moths decide to join forces against Godzilla. Eventually, Mothra and Battra overwhelm Godzilla and carry it over the ocean. Godzilla bites Battra's neck and fires its atomic breath into the wound, killing Battra. A tired Mothra drops Godzilla and the lifeless Battra into the water below, sealing Godzilla below the surface by creating a mystical glyph with scales from her wings. The next morning, the Cosmos explain that Battra had been waiting many years to destroy an even larger meteoroid that would threaten the Earth in 1999. Mothra had promised she would stop the future collision if Battra were to die, and she and the Cosmos leave Earth as the humans bid farewell.