a cannon that shoots out projectiles that look like bricks and can be charged up for 2 seconds.. and the more charged up they get shot out with more force and less affected by gravity
not charging it up or charging it up for .5 seconds shoots out a 1x1 that does only 10 damage and little knockback
charging it up for .6 to 1 second fires a 2x2 that does 20 damage and some knockback
charging it up for 1.1 to 1.5 seconds fires a 3x3 that does 30 damage and some more knockback
charging it up for 1.6 to 2 seconds fires a 4x4 that does 50 damage and a lotta knockback
and if ya can the bricks could shatter into pieces when it hits something