Mutazione is a great example of how games can immerse you in a world in a manner that no other medium can achieve. Whilst it doesn't push any envelopes, it is easy to recommend to anybody who is interested in games that can get an emotional response. Don't let the description soap opera put you off; this is a movingly, melancholic and meditative experience.
Ice Age: Scrat's Nutty Adventures isn't a terrible game, but it is so old fashioned and average that it is difficult to recommend. If you have kids of the right age range and find it on sale, then it's fun enough. The lack of a movie to tie into leads to a particularly weak story that feels like it's tacking on a license instead of a genuine entry in the Ice Age series. Scrat may find his nut, but I was left unsatisfied by a functional but mediocre tie in.