Cannon Challenge

I don’t know if it’s because it’s a Discovery game, but this game has really got me playing for hours. The way to play is to hold the iPhone in landscape position, the cannon is on the left, and targets (tanks or helicopters) on the right..You need to set up the velocity and elevation of the cannon in order to hit the target. At first it’s quite easy, but then you have some helicopters to hit. You need to set the right timing too. As always, I prefer free iPhone games so download it and enjoy.