(From the offline discussions, I guess Supper, Sakura and Sapph are done too. Time to move it.)
Arche dispersed of the his blue flames, as they didn't seem to be effective on Omega Joe. Once he did so, he changed his stance, "I don't think he's in a position to deflect these, this time. He's losing himself," he said as he spun around, appearing as a blur.
"SPINNING OMNI SLASH!" He used the momentum from spinning and swung his blades forward, sending out multiple energy waves, each of them hitting Omega Joe square in the chest, tumbling him backwards.
Omega - Nnghhhhh!!
He desperately struggled to stand up, however, Mechagarurumon's fiery shockwaves wrecked against Omega Joe, pieces of his armour began to crack and fall off. More crackling of sparks, and contact with the flames, seemed to cause a reactor meltdown.
Omega - No... This can't be... NOOOOOOO!!
Omega Joe gripped his chest, but it was for naught, as the sparks engulfed his whole body, finally... A huge explosion, sending shockwaves and debris towards the heroes. Omega Joe's beam saber somehow managed to survive the explosion, and got itself embedded into the ground not far from the crater the explosion created.