My basic strategy: fist, poison and food mace; exp/$ ring when grinding, food/mana regen when tough level (rare); concentrate upgrades on aura and food/mana regen; almost always the same strategy for levels: lots of archers for damage (high dmg/food) and then some critters for meat sheild (start with mice for easy levels, then kangaroos, then rhinos, and then mix rhinos(2-3), penguin(2-3) and dragon for last levels)... meat mace for levels, for boss levels (except ghost and last) use normal strategy but just as you notice a bit of life left start spamming tons of mice. Most bosses waste time taking one mouse out while the rest of you just destroy.
 "Keeper of the Grove 2"){kind=icon}
 "The Lord of the Tower"){kind=icon}
 "Running Warrior"){kind=icon}
 "Takeover"){kind=icon}
 "Paladog"){kind=icon}