I got this game recently - it was too addictive. I beat it in a weekend, and didn't get much work done
. I still can't figure out how to get the OCD award on most of the levels though.
I also, for an engineer, am having a difficult time getting the stupid tower built to a great height in the free tower mode. Those naughty little goo balls make the whole system wobbly, unstable and just plain frustrating
!