The Monster X Strikes Back/Attack the G8 Summit (Japanese: ギララの逆襲／洞爺湖サミット危機一発 Girara no Gyakushū: Tōyako Samitto Kiki Ippatsu lit. Guilala Strikes Back: the Tōyako Summit Attack Crisis) is a 2008 Japanese kaiju comedy film, released by Shochiku and produced by the Guilala Production Committee.
The leaders soon discover the reason for Guilala's appearance on Earth was due to a Chinese satellite that fell out of orbit and was the crashed "meteorite" in Sapporo. Assisting the leaders is Dr. Sano, a Japanese scientist who discovers that Guilala is actually a cosmic spore attached to the Probe that was exposed to the Earth's atmosphere, causing it to grow into the monster. He also figures out that the crash caused Guilala to lose a lot of energy and it is searching for "high temperature" energy to recharge. The doctor does not think the monster will leave Japan until it finds the energy it needs. Meanwhile, Guilala arrives at the Noboribetsu Power Planet and sucks all of the energy out of the plant.
Hoping to trap Guilala, the Japanese set up an earthquake generator near "Mt. Showa" to draw Guilala to a magma flow and destroy him with a super missile known as "The Vulture". Guilala arrives to feed, but he swallows the missile whole when it is fired at him. Soon, other countries are scrambling with their own "super" weapons, but each one fails in comedic fashion. In the middle of all this the Japanese Prime Minister is waylaid by diarrhea and is replaced by Junzaburo Ohizumi, a former Prime Minister and a friend of the US President. He arrives to help in the battle, but seems shifty. Ohizumi even suggests using nuclear weapons, but is stared down by the other leaders.
When Guilala's mind is damaged by a British brainwashing weapon, the monster begins a wild rampage. Ohizumi suddenly reveals that he is in fact the leader of the "North Country" (North Korea's Kim Jong-Il). He stole Ohizumi's identity during a state visit. He reveals that the Japanese interpreters attending the G8 Summit are all his spies and they all draw weapons, taking the world leaders hostage. He also announces that he plans on using a "limited" nuclear warhead to destroy Guilala. Meanwhile, President Sorkozy of France has finally bedded the translator, who confesses her true identity. Clad only in a towel, Sorkozy creates a distraction, which allows Japanese soldiers to rush the spies. The North Country leader is captured but not before managing to launch the nuclear missile at Guilala. Dr. Sano announces that Guilala's spores are re-energized and that if the missile strikes it will spread Guilala spores worldwide...
Two Japanese journalists named Sumire Sumidagawa and Sanpei Toyama discover a hidden village full of worshipers. They are driven out as outsiders intruding on a sacred ceremony. Shortly afterward Guilala lands and begins searching for energy. Sumire and Sanpei are sent to get news on Guilala's rampage. However, their efforts prove unsuccessful as other news groups are looking for big news on Guilala. During the G8 Summit's efforts to stop Guilala, Sumire encounters a boy she saw at the village's ceremony. Believing that the village might know how to stop Guilala, Sumire and Sanpei return for answers.
They find a carving of Guilala which they also notice is battling another monster. That figure is known as "Take-Majin," a deity the villagers worship. An ancient prophecy predicted that Guilala was going to destroy the world, but he would be stopped by Take-Majin, who would awaken to save mankind from Guilala. The little boy Sumire met earlier worshiped Take-Majin, after his father was killed in a landslide. Concerned with the planet's safety over their own, Sumire and a reluctant Sanpei participate in Take-Majin's awakening ceremony. Just when Take-Majin is about to wake up, the entire village is evacuated by the army when a nuclear missile is fired at Guilala.
But Take-Majin suddenly awakens and stops the missile by catching it with his buttocks, allowing it to explode inside of him. He then confronts Guilala, preparing for battle. After a long battle Take-Majin is victorious, decapitating Guilala, saving all humanity as prophesied. Take-Majin then returns back into his shrine to sleep once again. The G8 Summit leaders celebrate their victory by taking a bath in a hot spring (despite the leader of the North Country escaping during the fight).
When released at G-Fest, XVI the film received mostly good reviews. Fans felt the film was entertaining because it did not take itself seriously, since it was a comedic melodrama. However, some fans were disappointed that many sequences of Guilala in the film (Guilala's rampage on Sapporo, Guilala's attack on the power plant and almost every scene of Guilala shooting fireballs) were nothing more than stock footage recycled from the original film.
The Monster X Strikes Back: Attack the G8 Summit was released in North American on DVD on June 30, 2009 by Media Blasters. The special features are a photo gallery and Tokyo Shock trailers.