Here`s a simple 2 player game i`ve been working on about a week ago.
First open the scene, it`ll be easier to understand the gameplay when you can see what i mean
When its your turn, use the up and down keys to control the gun. When you`re satisfied with the aiming, press LEFT. This shoots a bullet to the (remains of the) tower. Your goal is to get as many bricks as possible into your cup (bottom left), which is either blue or red.
When there is no more movement, press RIGHT to switch turns.
The game continues untill all bricks have gone from the playfield OR when all the bullets are gone.
Now all you have to do is press 0 (on the numpad) to see which cup weighs more.
1 hint, the blue bricks weigh more then white ones, so if you have a chance, go for them.
I hope this made everything clear, if you have any questions or comments please ask
Have fun!