That was interesting - like building a Super Mario level to defend your tower. There is something satisfying watching hundreds of little guys getting shredded in your evil contraption.
It was a bit weird that there is no separate building phase. I really would like to strategize how I place my traps but now I need to do it in a hurry as enemies start coming immediately.
As a side note, it took me a couple of restarts to even understand that I can buy things at the start. I thought the start was a main menu, so it was a bit confusing that the game immediately started inside a game.
But overall, this was a pleasant and quite creative entry!