I really liked this game, as it is perfect for a high score style game as well as the fact it definitely fits the theme of destruction! I thought the little details were nice especially not just how it displayed the high score but had the numbers going up in an arcade-style fashion! As well as the wave system!
One thing that I think could be improved (however this may just be a personal thing) is the movement as it feels like an arcade game but the movement disagrees as I am assuming it was done with Input.GetAxis instead of GetAxisRaw which would have felt more arcade like to keep in with the whole atmosphere that was being created. Again though this is probably a personal thing and is definitely a minor issue!
Overall this is a really fun jam entry!