i just recently completed the game, it took me around 5 hours to do so. The last 2 stages were honestly too easy. I was prepared for a big challenge, but due to me having the dragon unit-thiningy and the regeneration ability everything went smoothily. As i said too easy i would rather appreciate if the game developers could increase the difficulty like adding a hard mode as well... + if you agree (sry english isn´t my first language so there might be some gramatical errors)