Thank you for the kind words and feedback.
Nice to know that the effort I put into the UI design was noticed and appreciated. I spent way too long tweaky it and the Tech Tree ;)
The movement system is a bit like Marmite, you love it or you don't. I will probably add an alternative movement system once the Jam is over.
On the alien death explosions point, I think it would get too overwhelming later in the game. However, I might make it so that bigger ones explode, or its say a 10% chance.
Cheers!