Le Mu

"Muuuuuuuuuuuu!!!!!"-The battle cry of Le Mu Le Mu (Japanese: Ra Mu) is the final boss in MegaMan Star Force 2. He is said to be the God of EM Waves in the legend of Mu as well being the ruler of Mu, and Lady Vega insists on this, but at the end, he is defeated, disproving his divinity. After the people of Mu destroyed themselves, he slumbered along with Mu, until he was awakend by Vega.

MegaMan Star Force 2:
Le Mu first appears in the throne room, in the Great Shrine area on the floating continent of Mu. Lady Vega reveals to Hyde that he is the 'God of EM waves'. He then starts creating Mu EM bodies and sends them towards the Earth, invading the entire world. MegaMan proceeds towards Mu, and is warned by a Hertz that the legend says that the God of EM waves lies there, but Mega dismisses it as a legend. Later, MegaMan reaches the Great Shrine, and Vega calls him to the throne room. She tells him of Le Mu, and that he is a God, but Geo and Mega don't believe her. She tells them of her past, and of her plan to become a God to rule over people and fix societed, dividing it between the talented and the foolish. She says he's responsible for making Mu an advanced civilization, lifting the continent, creating endless supplies of Mu EM bodies out of nothing, and creating the EM Wave World itself. MegaMan refuses an offer to join Vega, and engages in a final confrontation with Le Mu. MegaMan wins, but in a last and suicidal attempt, Vega orders a heavily damaged Le Mu to smash Mu into the ground to blow the Earth up. MegaMan tries to stop her, but Hollow ditches his battle with Rogue and appears to help her. MegaMan damages him, and discovers he's a matter wave shaped like a human. Vega tells of her dead lover, Altair, and of Hollow's past. Le Mu then goes out of Vega's control and starts exploding of all his injuries, and a powerful explosion sends everyone flying away. Hollow shields Vega with his body, and is killed. Hollow dies, but his last prayer travels beyond dimensions, and a miracle temperorarly brings back Altair's voice to speak with Vega. Just as MegaMan speaks with Vega, Le Mu reawakens, and continues to carry out Vega's last order. Vega leaves, and MegaMan heads back to finish what he started. He shoots twice, but Le Mu is unaffected. MegaMan falls, but his friends call him and tell him that the whole world is listening to his bravery. Encouraged, MegaMan stands up and destroys Le Mu, causing the entire continent of Mu to collapse ocean.