I had trouble playing at first, but like most new apps after the 4.0 upgrade, if you restart your device works fine.
I am tired of having to set the goals every game and then go out of the way because the entry and exit points are in the field instead of off the border.
It is a knock off of desk top defender and while it isnt everything the original is and a little hard to play on the small screen, it is Almost enjoyable.
Classic, simple, semi-enjoyable. I give it 2 stars.
Miq2u about SG TD