Santeh,
Where are you located? If you are near South Central PA, could find time for you to stop by and give mine a play.
Like Whysnow said, solving all of the mysteries in one game is almost impossible (this is coming from someone that is able to get LITZ on TZ at least one game in 10). Solving the crime is not tough at all. You shoot the phone once and you pretty much know who committed the crime. Then you have to (usually) shoot the phone a second time, choose the suspect then chase them (by shooting the lit (right or left) taxi loop). Once you "catch" them you have to shoot the phone again (maybe to report that you caught them??) and then you get a multiball and start with the next case. All the while you can ride up and down the elevator to different floors and modes.
One of the nicest things about it is that any time you have two of the three matched on the slots reels you get a second chance to match the third. This is especially great since the outlanes have a "spins" that you select with the flippers. Any time you are headed for an outlane, you switch the lights to the outlane and if you make it, the reels spin. Always a chance of multiball (which completely negates the drain), an extra ball, or getting two of the three - which means you get a ball fired back into play to try and make the second chance. Even if you don't make the second chance shot, you still keep playing the ball.
As another post mentioned, the Novice mode is great for newbies or kids. You can program it from a minute to five minutes(?) where if you drain it just keeps firing balls for the set amount of time.
The only thing I have found that is really annoying about the game is that I do tend to get a lot of airballs. Off the train ramp - shoots up into the roulette toy. Under the train ramp (right taxi) winds up on top of the plastics at the back of the playfield. I have had to pull the ball out from there quite a few times.
Other than that its a lot of fun.
"Hey! Freeze Clownboy!"