First of all, wow! Congratulations on being able to do this in nine days! If you add sounds and animations in the future, this game will be amazing.
I managed to get to halfway through the third map, I died to a group of spiders and a strange robot(?). Sacrificing your allies ended up making each level even more difficult. The only thing I didn't understand was why sometimes an attack targets the first position and sometimes the second.
I was also unsure if there was a way to defeat Chronotyrant or if I had to go until there were none of the 5 left. ;-;