1? Meh. 2? Humm, 3? Wait a sec, 4? OK problem...

[Alex]

If it is well designed I expect what will happen is what always happens, they'll find that there is unrecognized energy input into the system.

If poorly designed I expect what will happen is what always happens, they'll realize that the machinery was so complicated as to mask what's really happening.

If scammily designed I expect what will happen is what always happens, they'll realize that the inventor is intentionally hiding the energy input.

And there's a very, very small chance that what the man has done is not invent a perpetual motion machine but rather to have found a way to transfer energy that doesn't require currently known energy inputs. After all, a solar powered toy car would appear a perpetual motion machine if you were unaware of electromagnetic radiation.

But I feel extremely confident saying he hasn't invented a true perpetual motion machine that consumes less energy than it produces.