The on foot sections of this game feature some of the cheapest gunplay I've ever played in an fps. The enemy ai is box of rocks stupid but seems to have the ability to wall hack to make up for it. This combined with a strange critical hit damage system, allows the computer to frag you in a single hit before you even see them. Beware, the letters on your quick-load key may wear off. ;)
Fortunately, this game oozes charm. Gunplay has a satisfying and distinct feel (same genre but nothing like Quake, Unreal, Src, or Halo engines). Everything is bright and colorfull. Levels are just the right length such that they don't seem to drag on forever. Quality voice acting. Game has multiple paths and endings. The designers had a sense of humor!
This game makes me so sad. It has so much potential but seems like it was rushed out the door 6 months too early (to beat Half-Life to market perhaps?).
I'd recommend Shogo to FPS buffs with diverse tastes. It's an interesting evolutionary dead end of the genre, formed during the intense experimentation of its early years. Things seem much more formulaic now so I fear we'll never see a unique FPS like Shogo again.