Interesting concept!
I love how structures break and crumble when you pilot into them!
It might be a good idea to set up an out-of-bounds area and to loop players around or reset them if they go outside it.
Overall, you did well and I can see a lot of potential. Kinda reminds me of angry birds! :)
Please consider also rating my game and leaving some feedback when you have a moment to spare.
I would greatly appreciate the opportunity to learn and grow from the experience.