*hears cries of "Old! OLD!" from the populace*
Yes, I know it's old, but the guys at work have got me playing Zookeeper again, and now that I've found a version with an English front end, actually figured out how to play it, it's super-addictive.
I'm still crap at it, natch. I topped out at Level 5 with a score of 7160 this lunchtime, which is *way* behind Olly and Charles, who are scoring over 15000. I've got some work to do on this. Comments are open for you to shame me with your high scores.