Before purchasing PCE Altered Beast, I took a look at screens of it lined up against caps from the Genesis version, and the comparisons left me disappointed with (and very critical of) the HuCard's visuals. So I was absolutely amazed to find that said visuals are extremely appealing when viewed firsthand, mainly thanks to the gorgeous colors the artists employed. Some of the foreground objects and backgrounds that I'd scoffed at ended up looking not so bad onscreen. Even without parallax scrolling, the PCE version of AB looks fantastic. In fact, the colors add so much to the experience that I'd say I prefer the graphics here to those in the Genesis game.
Creatures most of us know well. The eyeball guy who goes down so easily in the Genny version is a bastard here.