No Way to kill the Demon Robot

The Megahunter testing the DNA of the MegaPredator. The Megahunter set the experiment things and he put the DNA in a test tube and put some medicines. The Megahunter did a another weapon machine to kill and he planed to change the DNA. He set everything and he drink the medicine which was mixed with the MegaPredator DNA. Then, the plan was there is no way to kill the Demon Robot because he mixed a medicine he did which noone can kill him. Michael saw it and try to call John but it was late. Megahunter killed him by using his sword. He cut into pieces and went by taking the TSAR bombs. He first blust off the lab and went away.