Generally speaking, in the animation of mechanical warfare (I won't talk about reflective cloak), the principle of bulletproof vest should be based on the scientific and technological theory inside ~ this is not feasible in reality ~

Because the energy conversion device of the body converts the energy in immaterial state, and integrates the molecules in the air around the body to form a protective cover visible to the naked eye ~ absolutely defending against live ammunition attacks ~ but if the energy during the attack is greater than the total bearing capacity of the protective cover, the damage to the body itself will be greatly strengthened, because the circuit instruments of the body will be in a semi-paralyzed state at the moment when the protective cover disappears, which will affect the later operation. Generally speaking, it can be said that the protective cover of the body is destroyed by external force, so the probability of survival of this body will be very low ~