If you have any trouble with the game, just get the TMP and upgrade it as much as you can, also upgrade your shooting and agility skills, then a few points on endurance, that's all you need... also get the sniper rifle to kill the annoying sniper zombies
Nice addicting game, but the avoid square is really annoying but you can doing with enough training... HOWEVER the bug part is impossible, i had to use autoclicker to actually get pass it.... you should check it out
for boss number 3, to make sure it throws a spear at you, get on the lowest part of the screen, then when the earth starts to shake for the rino charge, press up so your character gets completely out of his horn attack area, then the gnome will ALWAYS throw a spear at you
For boss number 3 (the big orc zombie troll thingy), stand still until some food hits you, pick it up, and wait until the boss is close, throw the food and it will and it will freeze up to eat it, take your weapon quicly and beat the crap out of him, he will jump, get to a corner ten dash jump over him and repeat, it's safer than badplanman's plan