The Hunger Games
This Muttation is called The Kamikaze and, I think that the Kamakazi would be of great use to you and the game makers because the human disguise would lure the tributes in the Arena to himself and then, it would explode. Death would be slow and agonizing after the explosion.
The Human can be used by the Capitol because its easily disguised and can easily fool the tributes around it. The best type of human for this Muttation is the kind that can be easily brainwashed.
This new type of C4 plastic explosive is easily fused with human DNA and can be grown into the skin of the host human.
The Kamikaze is a deadly Muttation that uses C4 that is genetically fused with human DNA and is grown into the human skin. It can survive any mild type of weather in any area, as long as it's not to hot or not to cold. It is detonated remotely; however, we are working on a way for the human to detonate by it's own thought.