The pile of round 1x1 bricks over there are your projectiles (We refer to them as soda cans, since that what we pretended they were at one point.), you use the catapult to launch them at the target. Landing on the different towers or colored zones gets you points.
Picture of the target of the catapult.
An open treasure chest and two barrels give lots of points if you land in them!
Landing the soda can on one of the towers gets a lot of points!
Here you can see the barrels I included in the stands for the towers, sticking to the pirate theme as much as possible.
Here's how I built my catapult. You could do it countless different ways though.
I got several different technic bricks and an axle. Some important elements are a large base so it doesn't flip over, a long plate or otherwise for leverage and a bucket of some sort to hold projectiles. I used a cauldron, but you could use anything, even build a box out of bricks!
Let's start with the base. I added various tiles and grilles to add some texture. Raise up where your catapult arm will attach a few blocks off the ground.
Then the longer ones.
And finally, the cross shaped hole technic bricks to stop the other bricks from sliding off.
Now I attach the arm to the two center bricks.
And set it on the base. Ready for launch!
Yes! Landed in the chest! Twenty points!
Action shot!
Close up of the anchor and chain hanging off the tower. There's also a sextant sitting up there on the tower, along with a chest that you can get points for landing in.
Here you can see one of the chests and a cutlass, as well as all the different colored scoring zones.
A pistol, golden telescope and a pirate flag to add to the theme.
A ship's wheel and a pirate hat, complete with plume, adorn this tower.
Picture of the bottom.
Here's my scoring guide:
Black-----------1
Dark Gray----2
Red--------------3
Yellow---------4
Blue------------5
Light Gray---6
That Hole Behind
The Chest-----7
Chests---------20
Barrels--------30
Flag Tower---10
Chest Tower--12
Wheel Tower-15
Balancing it on any small object, like the sextant or the cutlass is worth fifty points, but it's unlikely that will happen. Also, there's an optional five point bonus for turning the steering wheel.
You can build any sort of target with any sort of theme. There's a game similar to this in my brother's LEGO play book, a giant castle with different colored scoring zones and things to land in like ours has. Even a flat set up of multicolored plates on the floor would work!
Enjoy!