Hello!
Firstly well done for making this. It shows a good beginners understanding of game programming and planning. The game play is easy to understand and pick up.
The restart button doesn't seem to work. I'm not sure if this only on PC as I haven't tried it on mobile. Also after moving the projectile there seems to be no way of interacting with it again which makes level 2 impossible. Maybe dedicating it to either PC or mobile will give you a better vision of how you can make it work? One thing at a time as they say.
Test, test, test. Get your mates, family and so on to play it and see if they can find bugs. A fresh pair of eyes is always useful.
However, GG on making this so far dude. Keep up the work, keep working on it and it'll be cool to see you pop up in another Jam.