People are trying to escape via portals. Kill more people than escapers...
Kill the people by using the cannon.Instuctions:
Aim with mouse and when it is ready Click and hold left-mouse click to set the power and release to fire..
If a cannonball hit the wall or explode near the wall, wall lose some of its hp. Also if a people hit the wall, the wall lose a little hp.Keywords:
cannon kill fortress physics