Tear Jerker / The Brave Express Might Gaine

• The deaths of Guard Diver and Battle Bomber. Guard Diver's is especially hard to watch as he's essentually executed while his teammates are unable to do anything but watch.
• The Heroic Sacrifice of Black Gaine, especially the part where Might Gaine mourns for him while cradling his severed head and Maito sheds Manly Tears of rage.
• Tri-Bomber's death. Yeah, the Bombers get rebuilt later led by Horn Bomber, but the whole fight was a massive tear jerker.