With so many units on the battlefield, managing units(send assassins to kill shaman) becomes impossible later on. Maybe reduce the number of enemies and allies(increase cost), and give them extra health?
Yep, thought about that. But it's nearly impossible to make such serious changes in the game that is already released. But looks like the next part will contain less units and more precision controls - like as you said.
Oniko sacrificed the ninjas to empower Mumei when she was unable to open the Jigoku gate thru Reiko. Also, the sword can go into a stasis, stopping the life drain. Mumei is at work here, and in the heat of battle, she can rage into bloodlust that does the killing of the wielder. with no enemies to kill, she can simply turn her self off to continue using the human host.
we should be able to sell our towers for full price before the first wave starts. this way, we can plan out our towers without having to keep clicking restart.
each missile destroys 250k, each lazer destroys 8k (unit:creeper) you can see the amount of creeper in one place by moving your mouse over it. know which weapon to use!
 "Royal Warfare"){kind=icon}
 "Obliterate Everything 3"){kind=icon}
 "Forbidden Arms"){kind=icon}
 "Cover Orange: Journey. Knights"){kind=icon}
 "Obey the Game"){kind=icon}
 "Love"){kind=icon}
 "Incursion 2: The Artifact"){kind=icon}
 "Demons vs Fairyland"){kind=icon}
 "Creeper World 2: Academy"){kind=icon}
 "Netbots"){kind=icon}
 "Arzea"){kind=icon}
Yep, thought about that. But it's nearly impossible to make such serious changes in the game that is already released. But looks like the next part will contain less units and more precision controls - like as you said.