Doesn't use a weapon.
He is not serious.
He doesn't increase in power or gain items along the way.
He doesn't use magic.
He doesn't have psychic power.
He's a figurehead of sorts for a group, but not the leader.

I didn't get the city that he lives in. Anything is possible I guess...

No and if running a business means being the owner or making the big decisions, then no.

scientist from mdk game?

No and the scientist from MDK is a good guy as far as I could tell from the first game ;).

i never trusted him :D

have he been to another planet besides earth?

Does he believe in the supernatural?

Yeah, he [MDK scientist] looks creepy at times, but he's a real softy inside :P.

Concerning the question: I don't recall it being specifically said, but given the technological level, I'd say it's plausible.

It's not mentioned, but he strikes me as a personality type that could, so I'll say it's plausible.

Lance Boyle Mega Race games, hero of all the world :-)

Very good!

Your turn :).

Does it have a gender?

If so, is it a male?

Yes
Yes

is it the protagonist in the game?

Not per se, though he could be a major part if you want him to be ;)

Does he live in a fantasy medieval era?

If not, does he live in a futuristic era?

And if not, does he live in an alternate current time era?

And if not, does he live in an alternate past era?

YES :)

Does he at some point in his life meet a witcher? ;)

No :p