I remember some of the art was quite nice and I agree that the whole package worked really well. I remember the Christmas themed Holiday Lemmings being really

I remember some of the art was quite nice and I agree that the whole package worked really well. I remember the Christmas themed Holiday Lemmings being really well done and the full games had a lot of nice artwork also (the second one had a bunch of different environments with somewhat different mechanics; I remember the space lemmings for some reason). I haven't tried World of Goo, thanks for the recommendation!