I love plasticine. It's a wonderfully versatile substance. You can make juvenile structures and appendages from it, explosives of various kinds, and can even create large-scale animated recreations of what it's like to live Up North with it. Indeed, it's the hand-modelled plasticine that gives the Wallace and Gromit animations so much of their visual charm; it's a great pity then that some of this charm gets lost in the [gaming journalism cliché alert] Inevitable Game Adaptation of what is a very enjoyable animated romp.
Unfortunately, the visuals are cartoonish. Ordinarily that would be all well and good for a game aimed squarely at the kids. But Wallace and Gromit isn't a cartoon; it's stop-motion. Would a stop-motion-style really have killed you? Really? Perhaps achieving that kind of visual style would have required a great deal of work, and the game was undoubtedly rushed to get it done in time for the cinematic release as such things always are; alas a genuine Wallace and Gromit visual style would have to be the first thing to go.
Quite reasonably, most right-thinking people fear film-to-game conversions because they tend to be unspeakably awful. Blame Acclaim, if you must. I do. However, in this case, trepidation is not warranted, because (and I thank the holiest of holies) this isn't an awful film adaptation by a long way. I'd even go so far as to say that it's good. For a while. If you're a kid.