The release system is ridiculously sensitive. The difference between a arching shot past the end of the map and low shot that bounces on the ground about the blink of an eye... The king unit seems bugged, sometimes I knock him over and get lots of points...other times I do the exact same thing for 0 points. Flags should be knocked down easier by cannonballs. On level 4 in particular I hit the flagpole with a direct hit 3 times without it falling... On levels one and two you can score over two thousand points by just knocking the heads off the soldiers on top without even touching the castle, bug? Other than those issues it is a pretty decent game and oddly addicting. I hope castle clout 4.0 will have slightly less sensitive controls and less buggy units. It would also help if you could reset a level without going back to the start.
once you get to code name dalek it starts getting old. Before that great game though. The particle auto cannon and level 3 plasma cannon are challenges, but starting at dalek they are everywhere. Once that happens the game loses its stealth aspect.