A complete overhaul of the Alien Shapes 3.0 package. The artwork is very, very impressive... It's now packaged as a full scenario. 7 level solo map (a little buggy, but nothing critical anymore), new sounds, a physics model, and 4.5 megs of new shapes... the ambience of these levels is incredible. The new textures add tremendously to the feeling of claustrophobia... play this with headphones cranked, or plug your mac into your stereo system and turn it up! Don't get lulled by the cakewalk-like feeling of the first couple of levels... you'll pay for it if you don't stay alert. This one gets three thumbs up (I found an extra on level 3...).