The Ruthless Fight! Schwarz's Last Match is the fortieth episode in Mobile Fighter G Gundam.
Domon is set to fight against Schwarz to determine the overall winner of the individual matches. Prime Minister Wong has the ring rigged with 5,000 time bombs set to explode after 8 minutes just in case there is no winner determined by that time.
Just before the match, Domon learns that Rain quit and joined up with Schwarz to represent Neo Germany.
The match starts and Domon gets pummeled by Schwarz. After a while, Schwarz decides to end the fight because Domon repeatedly profuses that he needs nobody but himself.
Domon finally learns that he needs his friends, and above all he needs Rain to win. Schwarz attacks and Domon uses the Sekiha Tenkyoken to defeat him. The ring explodes and Domon is victorious. At the end, the paramedics have to take off Schwarz's mask and it is found out that Schwarz is really Kyoji Kasshu.