I just recently got this game for Nintendo DS (I don't have a Wii. ). Anyway, I have to say that this is one of the most challenging and innovative (and addicting!) games I've ever played. Anyway, does anyone else have it? And if they do, I need help. I'm stuck on the 'Under the Knife' operation (5 patients in 10 minutes?!). Is there a secret to this that I don't know about?