A slight improvement over the previous, with several different engines used throughout (though some seem to serve no purpose).

Apparently, the villain from the last game released some toxic gas that turned the worlds population into zombies (except for Spy Guy and his boss, somehow).

The gameplay is generally running around, shooting things, at one point there is a side-scrolling segment (which is quite obviously stolen from MZX Encyclopedia, the "Stomp Example" is the same) where you drop bombs using the AWSD keys.

I still can't figure out how to beat that "Dark Room" puzzle, though.

The graphics still suck, too.