A solution to Manhunter II? What do you mean? How to win the game? Find a walkthru on the internet, do a google search or something.
If you want to use find a way out of the sewers of Manhunter, look at the balls, halls and dolls game. The sewer maze here is exactly the same layout as that game. In fact, where each item is in the maze of the game, there is a keycard in the same place of the sewer maze. Get 'em all, you'll need them later in the game. The maze can be hard because unlike other AGI games, the direction from which you entered the scene DOES matter. It is first person you know. Think of it as Wolfenstein or DOOM just without the smooth polygon graphics. LOL.