@eevee There's a lot to be improved, but thanks! The artwork and music for this game was first take, so it took me about 30 minutes to finish that. Most of the time was spent learning Lua and LÖVE. I am actually a big fan of LÖVE now, so I will probably be using that in other jams in the future :)
You're 100% correct about the enemy ships, as the arrangement is random. It could probably be solved by checking the position of other ships before spawning, as well as staggering the rate at which they spawn a bit more.