It looks more "cartoony" than I remembered, but it's definitely him.
Looking at it 20 years later, I got it mixed with the introduction or another kill screen. But there's no doubt that was the game I was looking for. I should have know it was a Sierra game, very popular at that decade.
I'm giving another run to many point and click games for the first time. Just like RPG games, it was hard to appreciate games like these as a teenager when english is not your native language. I'm giving a try specially to Full Throttle, Grim Fandango, Indiana Jones, Leisure Suit Larry and Monkey Island series... yet another serie to add on that list.
Future Wars looks appealing, I'll give it a try too. Thank you to all.