Your little "test" Gave me a great idea.
Its a skill game.
Kind of based off of a "Domino" effect. You are given a ball- Or maybe depending on the level a few of them.
You must destroy block(s) placed in specific ways. Say You place one block to roll off a line and this hits into another block and they are "Thrown off their platform".
One ball rolling down to hit one block - Points!
The levels get harder with less balls and more blocks to hit.
Some levels you actually hit the plane and it teeter totters - hit into other blocks "Combo"
Some just smash into the blocks, Ect...
Click where you want to place your block.
Also the first plane of that image should be slanted sorry but I am about to head off - I'm sure you get the concept.
Just had an idea
- If you want to make it more appealing to the modern day teenager - You could always have the Balls crush stick figures
Certain obstacles could be like vertical lines - To ricochet off of , Semi circles, Loops, "opposite ends" Ect.
Like I said just the outline.