Makes the mistake of focusing on the fighting.
It had improved 3D graphics, and had excellent animated cutscenes which looked great. This game also is far far bigger then the original, and you switch characters halfway through with the little girl then back to Carnby again a la Leisure Suit Larry 3. The fight with the tough baddie on the ship at the end was interesting too.
You'd think Carnby + Machine Gun would be good, but aiming and shooting are just as awkward as the original. And if you mess it up, expect no mercy from your enemies, and that's another problem there are literally ZILLIONS of enemies in this game, if you think there are lots in the hedge maze, wait until you get into the house itself and you'll see what I mean (flying pitchfork WTF!!!!, dressing up as Santa OMFG!!!!). And if the endless fighting doesn't drive you nuts, the super obscure puzzles will, the Billiard Ball Puzzle, which opens the door, had me stumped...until I got the walkthrough.
The Bottom Line
If you liked the original, you'll probably like this. Just don't expect too much. You will probably die many a frustrating death in the hedge maze, then the house just keep practicing your shooting and HOPE you don't die.....