At first I thought this game was gonna be a piece of cake and then I wondered why the bosses seemed out of order in terms of their difficulty levels
Silly me, I later learned of insane mode that makes you want to rip your hair out
Yea the challenge mode isn't challenging since it's not based off skill but completely off luck. It's more just the controls that mess the game up but seeing how it was made 3 years ago . . .
Just about finished the game now. One thing that I'd really like to see is to be able to actually upgrade the units themselves more. Pretty decent game 4/5
I'd rather have the controls made so you attack with one button having the attack in the direction that you are facing. Because of this I only got to wave 9 in the story mode on my first try.